Custom Design Manager for STAR-CCM+ FSAE Style CFD Simulations

Justifications

• StarCCM's built in Design mangager is difficult to setup and unreliable
• Automatic resource handling to parallelize running simulations on any number of nodes
• This allows us to better suit our avaliable HPC resources
• Allows for much better error handling and logging
• Can use whatever DOE method works best for us

MOO Study

Example Config file for MOO study

{
"UseDM": true,
"OutputDir": "./",
"SlurmConfig": {
"HostName": "",
"JobName": "2024MOOBaseline",
"Partition": "icx",
"Nodes": 16,
"Ntasks": 1280,
"WallTime": "12:00:00",
"Email": "email",
"MailType": "all",
"OutputFile": "output.txt",
"ErrorFile": "error.txt",
"WorkingDir": "."
},
"WorkingDir": ".",
"StarCCM": {
"StarPath": "/18.06.007/STAR-CCM+18.06.007/star/bin",
"PodKey": "",
"JavaMacro": "HandleSim.java",
"SimFile": "2024Car.sim",
"WorkingDir": "2024BaselineMOO"
},
"DesignStudyConfig": {
"StudyType": "Pareto",
"MOOConfig": {
"NumGenerations": 8,
"NumSimsPerGeneration": 16,
"OptimizationAlgorithm": "Genetic",
"MutationRate": 0.125
},
"NumSims": 128,
"NtasksPerSim": 80,
"OptimizationAlgorithm": "None",
"DesignParameters": [
{
"Name": "Biplane1 AOA",
"Units": "deg",
"Min": 0,
"Max": 10,
"NumSims": 128
},
{
"Name": "Biplane2 AOA",
"Units": "deg",
"Min": -10,
"Max": 10,
"NumSims": 128
},
{
"Name": "BiplaneGapSize",
"Units": "mm",
"Min": -10,
"Max": 5,
"NumSims": 128
},
{
"Name": "FW 4th Element AOA",
"Units": "deg",
"Min": -7,
"Max": 5,
"NumSims": 128
},
{
"Name": "BiplanePosition",
"Units": "mm",
"Min": -380,
"Max": 0,
"NumSims": 128
}
],
"DesignObjectives": [
{
"Name": "Aero Efficiency",
"Weight": 1.0,
"Goal": "Maximize"
},
{
"Name": "Rear Axle Downforce",
"Weight": 0.15,
"Goal": "Maximize"
}
]
}
}

Work in Progress future GUI