SimScale CAE Forum

Drag Coefficient Help

Hello, I’m a Newbie and I am trying to figure out how to use the Forces and Moments (coefficients) tool.

When I first used it I got absurdly large numbers in the post-processor. I believe it may be because of this:

For context, I’m trying to find the drag coefficient of a Greenpower F24+ car. My problem is that I do not know how I am supposed to fill out these sections shown in the screenshot.

In my model the airflow is in the Y-direction, so I put the drag direction as Y and 1 m. But I do not know what this distance relates to. Is it supposed to be length of the car?

Thank you very much for any help!

Hi Ahmet and sorry for the delayed response!

Here are some existing posts that cover this topic:

Let me know if that helped you.

Best,

Jousef