Which turbulence model for Formula Student?

fsaeengineering · October 2, 2017, 13:07

Hey,
I am working on Ansys fluent for our formula student car analysis.(This is a formula type race car..). I wonder, which turbulence model I should use for intake and exhaust manifolds fluent analysis.( k-ω/ k-ε/k-sst/reynolds/allmaras..) And why? Which is the most suitable?

bpulat · October 3, 2017, 04:08

In my personal opinion it all depends what you are actually looking for in the analysis.
If you are looking for seperated flow you can choose K-Omega for the start.
My suggestion is that you should also consider other models like SST and compare the results and determine which fits you better for your needs.

yow · October 4, 2017, 22:47

Regular ke to start in my opinion. Nobody likes it but everyone falls back to it, mostly due to its robustness.

FFD · October 6, 2017, 06:49

We use the K-Omega SST Turbulence model at our FS Team. It is pretty good for our case. It is a similar problem like yours. But it is not guaranteed that it will be as good for you. I depends on some more factors.

October 2, 2017, 13:07	Which turbulence model for Formula Student?	#1
fsaeengineering New Member Formula Student Join Date: Oct 2017 Posts: 10 Rep Power: 8	Hey, I am working on Ansys fluent for our formula student car analysis.(This is a formula type race car..). I wonder, which turbulence model I should use for intake and exhaust manifolds fluent analysis.( k-ω/ k-ε/k-sst/reynolds/allmaras..) And why? Which is the most suitable?

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October 3, 2017, 04:08		#2
bpulat Member Baris PULAT Join Date: Sep 2016 Location: Italy Posts: 59 Rep Power: 9	In my personal opinion it all depends what you are actually looking for in the analysis. If you are looking for seperated flow you can choose K-Omega for the start. My suggestion is that you should also consider other models like SST and compare the results and determine which fits you better for your needs.

October 4, 2017, 22:47		#3
yow New Member Yang Join Date: Jun 2015 Posts: 25 Rep Power: 10	Regular ke to start in my opinion. Nobody likes it but everyone falls back to it, mostly due to its robustness.

October 6, 2017, 06:49		#4
FFD Member Join Date: Aug 2015 Posts: 30 Rep Power: 10	We use the K-Omega SST Turbulence model at our FS Team. It is pretty good for our case. It is a similar problem like yours. But it is not guaranteed that it will be as good for you. I depends on some more factors.