Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post

cfd_guy · 09-15-2013, 10:40 AM

I saw only one guy using OpenFOAM. Everybody on here should be using it. If Falcon solves the cases that quickly, it cannot be that accurate. The models need to have a proper surface mesh created and then the fluid region needs to have a good mesh. Just to mesh the car with say a quality mesher will take around 5-10 minutes (this is to say with less than or equal to 5 million cells). With snappyHexMesh in OpenFOAM it will take significantly longer (around 1 hr running in parallel for 5 million cells if i remember correctly). If you all were using OpenFOAM, you could share case files to get everything set up. I can help anybody out if need be. You can also get a Windows version of OpenFOAM from blueCape or something like that. It is very cheap.

I am planning on running cfd on my new golf using OpenFOAM. I will post more when I get the cfd model ready.

09-15-2013, 10:40 AM	#80 (permalink)
cfd_guy EcoModding Lurker Join Date: Sep 2013 Location: Indianapolis / Chicago Posts: 27 cfdguy - '13 VW Golf TDI Thanks: 6 Thanked 18 Times in 7 Posts	I saw only one guy using OpenFOAM. Everybody on here should be using it. If Falcon solves the cases that quickly, it cannot be that accurate. The models need to have a proper surface mesh created and then the fluid region needs to have a good mesh. Just to mesh the car with say a quality mesher will take around 5-10 minutes (this is to say with less than or equal to 5 million cells). With snappyHexMesh in OpenFOAM it will take significantly longer (around 1 hr running in parallel for 5 million cells if i remember correctly). If you all were using OpenFOAM, you could share case files to get everything set up. I can help anybody out if need be. You can also get a Windows version of OpenFOAM from blueCape or something like that. It is very cheap. I am planning on running cfd on my new golf using OpenFOAM. I will post more when I get the cfd model ready.