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-   -   Regarding the rotation direction (https://www.cfd-online.com/Forums/fluent/42480-regarding-rotation-direction.html)

HSeldon October 7, 2006 12:36

Regarding the rotation direction
 
Hi all, I´m working with a car and I´m stuck with a simple issue. How can I know wich is the rotation direction of the wheels? My problem is as follows: If you look the car from the side it lies on the ZY plane, the nose is pointing to the Y negative (so the air is set to flow in the positive Y direction). I put the two origins of the rotation axes in the middle of each wheel and the rotation axis direction is X=1 Y=0 Z=0. Whit this configuration, are the wheels rotating ok or are they rotating in reverse?? I hope I was clear.. sorry for my english.

Thanks in advance.

Greetings from Argentina.

Rajit October 8, 2006 22:57

Re: Regarding the rotation direction
 
I presume your axis is pointing away from the screen.If thats the case your problem set up is right.If the X axis is pointing into the screen then it has to be -1.

Thanks Regards Rajit

sach October 9, 2006 03:30

Re: Regarding the rotation direction
 
hi if the rotational axias is coming put as a normal from the view plane apply left hand rule, rotational speed should be +ve

let me know for any quary sachcool80@gmail.com


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