How to calculate racecar downforce distribution

sancho78rus · November 15, 2021, 03:32

I'm trying to find more downforce for racecar. All car is one body.
I can calculate overall downforce.
But how to calculate downforce on front or rear wheels separately?
Or how else can I figure out what is the balance of downforce front\rear?

Yann · November 15, 2021, 04:55

You have to separate the parts (either by creating separate stl files or having named surface groups in your stl) in order to create patches for each parts your need to analyze. E.g. front wheels, rear wheels, body, spoiler, etc...

Yann

sancho78rus · November 15, 2021, 08:51

Is there really no other way to do it? Its not possible to divide the surfaces into Paraview?

Yann · November 15, 2021, 09:49

In ParaView you can use the clip filter with different clip types (plane, box, cylinder...) to cut down your surface in several pieces.

In my opinion it sounds more time consuming than running your case with proper surface definition though.

Maybe somebody will have a better idea...

Cheers,
Yann

November 15, 2021, 03:32	How to calculate racecar downforce distribution	#1
sancho78rus New Member Anton Join Date: Nov 2021 Location: Saint-Petersburg Posts: 10 Rep Power: 4	I'm trying to find more downforce for racecar. All car is one body. I can calculate overall downforce. But how to calculate downforce on front or rear wheels separately? Or how else can I figure out what is the balance of downforce front\rear?

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November 15, 2021, 04:55		#2
Yann Senior Member Yann Join Date: Apr 2012 Location: France Posts: 1,074 Rep Power: 26	You have to separate the parts (either by creating separate stl files or having named surface groups in your stl) in order to create patches for each parts your need to analyze. E.g. front wheels, rear wheels, body, spoiler, etc... Yann

November 15, 2021, 08:51		#3
sancho78rus New Member Anton Join Date: Nov 2021 Location: Saint-Petersburg Posts: 10 Rep Power: 4	Is there really no other way to do it? Its not possible to divide the surfaces into Paraview?

November 15, 2021, 09:49		#4
Yann Senior Member Yann Join Date: Apr 2012 Location: France Posts: 1,074 Rep Power: 26	In ParaView you can use the clip filter with different clip types (plane, box, cylinder...) to cut down your surface in several pieces. In my opinion it sounds more time consuming than running your case with proper surface definition though. Maybe somebody will have a better idea... Cheers, Yann