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added the algorithm to compute Reynolds number
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63 changes: 63 additions & 0 deletions physics/reynolds_number.py
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"""
Title : computing the Reynolds number to find
out the type of flow (laminar or turbulent)

Reynolds number is a dimensionless quantity that is used to determine
the type of flow pattern as laminar or turbulent while flowing through a
pipe. Reynolds number is defined by the ratio of inertial forces to that of
viscous forces.

R = Inertial Forces / Viscous Forces
R = (ρ * V * D)/μ

where :
ρ = Density of fluid (in Kg/m^3)
D = Diameter of pipe through which fluid flows (in m)
V = Velocity of flow of the fluid (in m/s)
μ = Viscosity of the fluid (in Ns/m^2)

If the Reynolds number calculated is high (greater than 2000), then the
flow through the pipe is said to be turbulent. If Reynolds number is low
(less than 2000), the flow is said to be laminar. Numerically, these are
acceptable values, although in general the laminar and turbulent flows
are classified according to a range. Laminar flow falls below Reynolds
number of 1100 and turbulent falls in a range greater than 2200.
Laminar flow is the type of flow in which the fluid travels smoothly in
regular paths. Conversely, turbulent flow isn't smooth and follows an
irregular path with lots of mixing.

Reference : https://byjus.com/physics/reynolds-number/
"""


def reynolds_number(
density: float, velocity: float, diameter: float, viscosity: float
) -> float:
"""
>>> reynolds_number(900, 2.5, 0.05, 0.4)
281.25
>>> reynolds_number(450, 3.86, 0.078, 0.23)
589.0695652173912
>>> reynolds_number(234, -4.5, 0.3, 0.44)
717.9545454545454
>>> reynolds_number(-90, 2, 0.045, 1)
Traceback (most recent call last):
...
ValueError: please ensure that density, diameter and viscosity are positive
>>> reynolds_number(0, 2, -0.4, -2)
Traceback (most recent call last):
...
ValueError: please ensure that density, diameter and viscosity are positive
"""

if density <= 0 or diameter <= 0 or viscosity <= 0:
raise ValueError(
"please ensure that density, diameter and viscosity are positive"
)
return (density * abs(velocity) * diameter) / viscosity


if __name__ == "__main__":
import doctest

doctest.testmod()
, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
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(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
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navigator.clipboard.writeText(codeBlock.textContent).then(function() {
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});
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addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
Added the algorithm to compute Reynolds number in the physics section by pluto-tofu · Pull Request #9913 · TheAlgorithms/Python · GitHub
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63 changes: 63 additions & 0 deletions
physics/reynolds_number.py

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,63 @@
"""
Title : computing the Reynolds number to find
 out the type of flow (laminar or turbulent)

Reynolds number is a dimensionless quantity that is used to determine
the type of flow pattern as laminar or turbulent while flowing through a
pipe. Reynolds number is defined by the ratio of inertial forces to that of
viscous forces.

R = Inertial Forces / Viscous Forces
R = (ρ * V * D)/μ

where :
ρ = Density of fluid (in Kg/m^3)
D = Diameter of pipe through which fluid flows (in m)
V = Velocity of flow of the fluid (in m/s)
μ = Viscosity of the fluid (in Ns/m^2)

If the Reynolds number calculated is high (greater than 2000), then the
flow through the pipe is said to be turbulent. If Reynolds number is low
(less than 2000), the flow is said to be laminar. Numerically, these are
acceptable values, although in general the laminar and turbulent flows
are classified according to a range. Laminar flow falls below Reynolds
number of 1100 and turbulent falls in a range greater than 2200.
Laminar flow is the type of flow in which the fluid travels smoothly in
regular paths. Conversely, turbulent flow isn't smooth and follows an
irregular path with lots of mixing.

Reference : https://byjus.com/physics/reynolds-number/
"""


def reynolds_number(
 density: float, velocity: float, diameter: float, viscosity: float
) -> float:
 """
 >>> reynolds_number(900, 2.5, 0.05, 0.4)
 281.25
 >>> reynolds_number(450, 3.86, 0.078, 0.23)
 589.0695652173912
 >>> reynolds_number(234, -4.5, 0.3, 0.44)
 717.9545454545454
 >>> reynolds_number(-90, 2, 0.045, 1)
 Traceback (most recent call last):
 ...
 ValueError: please ensure that density, diameter and viscosity are positive
 >>> reynolds_number(0, 2, -0.4, -2)
 Traceback (most recent call last):
 ...
 ValueError: please ensure that density, diameter and viscosity are positive
 """

 if density <= 0 or diameter <= 0 or viscosity <= 0:
 raise ValueError(
 "please ensure that density, diameter and viscosity are positive"
 )
 return (density * abs(velocity) * diameter) / viscosity


if __name__ == "__main__":
 import doctest

 doctest.testmod()

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
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';
document.head.appendChild(style);
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}
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})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Added the algorithm to compute Reynolds number in the physics section by pluto-tofu · Pull Request #9913 · TheAlgorithms/Python · GitHub
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Added the algorithm to compute Reynolds number in the physics section
#9913
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added the algorithm to compute Reynolds number


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fixed file name issue


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ef67be4

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63 changes: 63 additions & 0 deletions
physics/reynolds_number.py

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,63 @@
"""
Title : computing the Reynolds number to find
 out the type of flow (laminar or turbulent)

Reynolds number is a dimensionless quantity that is used to determine
the type of flow pattern as laminar or turbulent while flowing through a
pipe. Reynolds number is defined by the ratio of inertial forces to that of
viscous forces.

R = Inertial Forces / Viscous Forces
R = (ρ * V * D)/μ

where :
ρ = Density of fluid (in Kg/m^3)
D = Diameter of pipe through which fluid flows (in m)
V = Velocity of flow of the fluid (in m/s)
μ = Viscosity of the fluid (in Ns/m^2)

If the Reynolds number calculated is high (greater than 2000), then the
flow through the pipe is said to be turbulent. If Reynolds number is low
(less than 2000), the flow is said to be laminar. Numerically, these are
acceptable values, although in general the laminar and turbulent flows
are classified according to a range. Laminar flow falls below Reynolds
number of 1100 and turbulent falls in a range greater than 2200.
Laminar flow is the type of flow in which the fluid travels smoothly in
regular paths. Conversely, turbulent flow isn't smooth and follows an
irregular path with lots of mixing.

Reference : https://byjus.com/physics/reynolds-number/
"""


def reynolds_number(
 density: float, velocity: float, diameter: float, viscosity: float
) -> float:
 """
 >>> reynolds_number(900, 2.5, 0.05, 0.4)
 281.25
 >>> reynolds_number(450, 3.86, 0.078, 0.23)
 589.0695652173912
 >>> reynolds_number(234, -4.5, 0.3, 0.44)
 717.9545454545454
 >>> reynolds_number(-90, 2, 0.045, 1)
 Traceback (most recent call last):
 ...
 ValueError: please ensure that density, diameter and viscosity are positive
 >>> reynolds_number(0, 2, -0.4, -2)
 Traceback (most recent call last):
 ...
 ValueError: please ensure that density, diameter and viscosity are positive
 """

 if density <= 0 or diameter <= 0 or viscosity <= 0:
 raise ValueError(
 "please ensure that density, diameter and viscosity are positive"
 )
 return (density * abs(velocity) * diameter) / viscosity


if __name__ == "__main__":
 import doctest

 doctest.testmod()

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Added the algorithm to compute Reynolds number in the physics section by pluto-tofu · Pull Request #9913 · TheAlgorithms/Python · GitHub
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Added the algorithm to compute Reynolds number in the physics section#9913

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tianyizheng02
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Oct 10, 2023
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Added the algorithm to compute Reynolds number in the physics section
#9913
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5058450

added the algorithm to compute Reynolds number


pluto-tofu Oct 6, 2023
d18e5a6

fixed file name issue


pluto-tofu Oct 6, 2023
ef67be4

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tianyizheng02 Oct 10, 2023

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63 changes: 63 additions & 0 deletions
physics/reynolds_number.py

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,63 @@
"""
Title : computing the Reynolds number to find
 out the type of flow (laminar or turbulent)

Reynolds number is a dimensionless quantity that is used to determine
the type of flow pattern as laminar or turbulent while flowing through a
pipe. Reynolds number is defined by the ratio of inertial forces to that of
viscous forces.

R = Inertial Forces / Viscous Forces
R = (ρ * V * D)/μ

where :
ρ = Density of fluid (in Kg/m^3)
D = Diameter of pipe through which fluid flows (in m)
V = Velocity of flow of the fluid (in m/s)
μ = Viscosity of the fluid (in Ns/m^2)

If the Reynolds number calculated is high (greater than 2000), then the
flow through the pipe is said to be turbulent. If Reynolds number is low
(less than 2000), the flow is said to be laminar. Numerically, these are
acceptable values, although in general the laminar and turbulent flows
are classified according to a range. Laminar flow falls below Reynolds
number of 1100 and turbulent falls in a range greater than 2200.
Laminar flow is the type of flow in which the fluid travels smoothly in
regular paths. Conversely, turbulent flow isn't smooth and follows an
irregular path with lots of mixing.

Reference : https://byjus.com/physics/reynolds-number/
"""


def reynolds_number(
 density: float, velocity: float, diameter: float, viscosity: float
) -> float:
 """
 >>> reynolds_number(900, 2.5, 0.05, 0.4)
 281.25
 >>> reynolds_number(450, 3.86, 0.078, 0.23)
 589.0695652173912
 >>> reynolds_number(234, -4.5, 0.3, 0.44)
 717.9545454545454
 >>> reynolds_number(-90, 2, 0.045, 1)
 Traceback (most recent call last):
 ...
 ValueError: please ensure that density, diameter and viscosity are positive
 >>> reynolds_number(0, 2, -0.4, -2)
 Traceback (most recent call last):
 ...
 ValueError: please ensure that density, diameter and viscosity are positive
 """

 if density <= 0 or diameter <= 0 or viscosity <= 0:
 raise ValueError(
 "please ensure that density, diameter and viscosity are positive"
 )
 return (density * abs(velocity) * diameter) / viscosity


if __name__ == "__main__":
 import doctest

 doctest.testmod()

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
Added the algorithm to compute Reynolds number in the physics section by pluto-tofu · Pull Request #9913 · TheAlgorithms/Python · GitHub
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Added the algorithm to compute Reynolds number in the physics section#9913

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Oct 10, 2023
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Added the algorithm to compute Reynolds number in the physics section
#9913
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5058450

added the algorithm to compute Reynolds number


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d18e5a6

fixed file name issue


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ef67be4

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63 changes: 63 additions & 0 deletions
physics/reynolds_number.py

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,63 @@
"""
Title : computing the Reynolds number to find
 out the type of flow (laminar or turbulent)

Reynolds number is a dimensionless quantity that is used to determine
the type of flow pattern as laminar or turbulent while flowing through a
pipe. Reynolds number is defined by the ratio of inertial forces to that of
viscous forces.

R = Inertial Forces / Viscous Forces
R = (ρ * V * D)/μ

where :
ρ = Density of fluid (in Kg/m^3)
D = Diameter of pipe through which fluid flows (in m)
V = Velocity of flow of the fluid (in m/s)
μ = Viscosity of the fluid (in Ns/m^2)

If the Reynolds number calculated is high (greater than 2000), then the
flow through the pipe is said to be turbulent. If Reynolds number is low
(less than 2000), the flow is said to be laminar. Numerically, these are
acceptable values, although in general the laminar and turbulent flows
are classified according to a range. Laminar flow falls below Reynolds
number of 1100 and turbulent falls in a range greater than 2200.
Laminar flow is the type of flow in which the fluid travels smoothly in
regular paths. Conversely, turbulent flow isn't smooth and follows an
irregular path with lots of mixing.

Reference : https://byjus.com/physics/reynolds-number/
"""


def reynolds_number(
 density: float, velocity: float, diameter: float, viscosity: float
) -> float:
 """
 >>> reynolds_number(900, 2.5, 0.05, 0.4)
 281.25
 >>> reynolds_number(450, 3.86, 0.078, 0.23)
 589.0695652173912
 >>> reynolds_number(234, -4.5, 0.3, 0.44)
 717.9545454545454
 >>> reynolds_number(-90, 2, 0.045, 1)
 Traceback (most recent call last):
 ...
 ValueError: please ensure that density, diameter and viscosity are positive
 >>> reynolds_number(0, 2, -0.4, -2)
 Traceback (most recent call last):
 ...
 ValueError: please ensure that density, diameter and viscosity are positive
 """

 if density <= 0 or diameter <= 0 or viscosity <= 0:
 raise ValueError(
 "please ensure that density, diameter and viscosity are positive"
 )
 return (density * abs(velocity) * diameter) / viscosity


if __name__ == "__main__":
 import doctest

 doctest.testmod()

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Added the algorithm to compute Reynolds number in the physics section by pluto-tofu · Pull Request #9913 · TheAlgorithms/Python · GitHub
Skip to content
Added the algorithm to compute Reynolds number in the physics section#9913

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tianyizheng02
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Oct 10, 2023
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Added the algorithm to compute Reynolds number in the physics section
#9913
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added the algorithm to compute Reynolds number


pluto-tofu Oct 6, 2023
d18e5a6

fixed file name issue


pluto-tofu Oct 6, 2023
ef67be4

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physics/reynolds_number.py

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,63 @@
"""
Title : computing the Reynolds number to find
 out the type of flow (laminar or turbulent)

Reynolds number is a dimensionless quantity that is used to determine
the type of flow pattern as laminar or turbulent while flowing through a
pipe. Reynolds number is defined by the ratio of inertial forces to that of
viscous forces.

R = Inertial Forces / Viscous Forces
R = (ρ * V * D)/μ

where :
ρ = Density of fluid (in Kg/m^3)
D = Diameter of pipe through which fluid flows (in m)
V = Velocity of flow of the fluid (in m/s)
μ = Viscosity of the fluid (in Ns/m^2)

If the Reynolds number calculated is high (greater than 2000), then the
flow through the pipe is said to be turbulent. If Reynolds number is low
(less than 2000), the flow is said to be laminar. Numerically, these are
acceptable values, although in general the laminar and turbulent flows
are classified according to a range. Laminar flow falls below Reynolds
number of 1100 and turbulent falls in a range greater than 2200.
Laminar flow is the type of flow in which the fluid travels smoothly in
regular paths. Conversely, turbulent flow isn't smooth and follows an
irregular path with lots of mixing.

Reference : https://byjus.com/physics/reynolds-number/
"""


def reynolds_number(
 density: float, velocity: float, diameter: float, viscosity: float
) -> float:
 """
 >>> reynolds_number(900, 2.5, 0.05, 0.4)
 281.25
 >>> reynolds_number(450, 3.86, 0.078, 0.23)
 589.0695652173912
 >>> reynolds_number(234, -4.5, 0.3, 0.44)
 717.9545454545454
 >>> reynolds_number(-90, 2, 0.045, 1)
 Traceback (most recent call last):
 ...
 ValueError: please ensure that density, diameter and viscosity are positive
 >>> reynolds_number(0, 2, -0.4, -2)
 Traceback (most recent call last):
 ...
 ValueError: please ensure that density, diameter and viscosity are positive
 """

 if density <= 0 or diameter <= 0 or viscosity <= 0:
 raise ValueError(
 "please ensure that density, diameter and viscosity are positive"
 )
 return (density * abs(velocity) * diameter) / viscosity


if __name__ == "__main__":
 import doctest

 doctest.testmod()

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
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unstick();
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observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
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})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Added the algorithm to compute Reynolds number in the physics section by pluto-tofu · Pull Request #9913 · TheAlgorithms/Python · GitHub
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Added the algorithm to compute Reynolds number in the physics section#9913

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Oct 10, 2023
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Added the algorithm to compute Reynolds number in the physics section
#9913
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added the algorithm to compute Reynolds number


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fixed file name issue


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physics/reynolds_number.py

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,63 @@
"""
Title : computing the Reynolds number to find
 out the type of flow (laminar or turbulent)

Reynolds number is a dimensionless quantity that is used to determine
the type of flow pattern as laminar or turbulent while flowing through a
pipe. Reynolds number is defined by the ratio of inertial forces to that of
viscous forces.

R = Inertial Forces / Viscous Forces
R = (ρ * V * D)/μ

where :
ρ = Density of fluid (in Kg/m^3)
D = Diameter of pipe through which fluid flows (in m)
V = Velocity of flow of the fluid (in m/s)
μ = Viscosity of the fluid (in Ns/m^2)

If the Reynolds number calculated is high (greater than 2000), then the
flow through the pipe is said to be turbulent. If Reynolds number is low
(less than 2000), the flow is said to be laminar. Numerically, these are
acceptable values, although in general the laminar and turbulent flows
are classified according to a range. Laminar flow falls below Reynolds
number of 1100 and turbulent falls in a range greater than 2200.
Laminar flow is the type of flow in which the fluid travels smoothly in
regular paths. Conversely, turbulent flow isn't smooth and follows an
irregular path with lots of mixing.

Reference : https://byjus.com/physics/reynolds-number/
"""


def reynolds_number(
 density: float, velocity: float, diameter: float, viscosity: float
) -> float:
 """
 >>> reynolds_number(900, 2.5, 0.05, 0.4)
 281.25
 >>> reynolds_number(450, 3.86, 0.078, 0.23)
 589.0695652173912
 >>> reynolds_number(234, -4.5, 0.3, 0.44)
 717.9545454545454
 >>> reynolds_number(-90, 2, 0.045, 1)
 Traceback (most recent call last):
 ...
 ValueError: please ensure that density, diameter and viscosity are positive
 >>> reynolds_number(0, 2, -0.4, -2)
 Traceback (most recent call last):
 ...
 ValueError: please ensure that density, diameter and viscosity are positive
 """

 if density <= 0 or diameter <= 0 or viscosity <= 0:
 raise ValueError(
 "please ensure that density, diameter and viscosity are positive"
 )
 return (density * abs(velocity) * diameter) / viscosity


if __name__ == "__main__":
 import doctest

 doctest.testmod()

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
Added the algorithm to compute Reynolds number in the physics section by pluto-tofu · Pull Request #9913 · TheAlgorithms/Python · GitHub
Skip to content
Added the algorithm to compute Reynolds number in the physics section#9913

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Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

 Sign up for GitHub

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privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

tianyizheng02
merged 3 commits into

from

Oct 10, 2023
 Merged


Added the algorithm to compute Reynolds number in the physics section
#9913
 Changes from all commits
Commits

Show all changes


3 commits


Select commit
Hold shift + click to select a range
5058450

added the algorithm to compute Reynolds number


pluto-tofu Oct 6, 2023
d18e5a6

fixed file name issue


pluto-tofu Oct 6, 2023
ef67be4

Apply suggestions from code review


tianyizheng02 Oct 10, 2023

File filter

Filter by extension
Filter by extension
Conversations

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Loading
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63 changes: 63 additions & 0 deletions
physics/reynolds_number.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,63 @@
"""
Title : computing the Reynolds number to find
 out the type of flow (laminar or turbulent)

Reynolds number is a dimensionless quantity that is used to determine
the type of flow pattern as laminar or turbulent while flowing through a
pipe. Reynolds number is defined by the ratio of inertial forces to that of
viscous forces.

R = Inertial Forces / Viscous Forces
R = (ρ * V * D)/μ

where :
ρ = Density of fluid (in Kg/m^3)
D = Diameter of pipe through which fluid flows (in m)
V = Velocity of flow of the fluid (in m/s)
μ = Viscosity of the fluid (in Ns/m^2)

If the Reynolds number calculated is high (greater than 2000), then the
flow through the pipe is said to be turbulent. If Reynolds number is low
(less than 2000), the flow is said to be laminar. Numerically, these are
acceptable values, although in general the laminar and turbulent flows
are classified according to a range. Laminar flow falls below Reynolds
number of 1100 and turbulent falls in a range greater than 2200.
Laminar flow is the type of flow in which the fluid travels smoothly in
regular paths. Conversely, turbulent flow isn't smooth and follows an
irregular path with lots of mixing.

Reference : https://byjus.com/physics/reynolds-number/
"""


def reynolds_number(
 density: float, velocity: float, diameter: float, viscosity: float
) -> float:
 """
 >>> reynolds_number(900, 2.5, 0.05, 0.4)
 281.25
 >>> reynolds_number(450, 3.86, 0.078, 0.23)
 589.0695652173912
 >>> reynolds_number(234, -4.5, 0.3, 0.44)
 717.9545454545454
 >>> reynolds_number(-90, 2, 0.045, 1)
 Traceback (most recent call last):
 ...
 ValueError: please ensure that density, diameter and viscosity are positive
 >>> reynolds_number(0, 2, -0.4, -2)
 Traceback (most recent call last):
 ...
 ValueError: please ensure that density, diameter and viscosity are positive
 """

 if density <= 0 or diameter <= 0 or viscosity <= 0:
 raise ValueError(
 "please ensure that density, diameter and viscosity are positive"
 )
 return (density * abs(velocity) * diameter) / viscosity


if __name__ == "__main__":
 import doctest

 doctest.testmod()