Flap deflection

[Agustin Buffa]

Hi,

I'm quite new using OpenVSP and VSPAero, and I would like to model a plain flap for a future mesh for CFD. I know that there is a control group function in VSPAero but it seems that it doesn't change the geometry indeed, as it takes it into account when VLM is calculated only.

How can I model a flap? The wing is quite simple, from a UAV, a rectangular wing without any twist and AR approximately 10.

Thanks,

Agustin

[Grant Hiller]

Hi Agustin,

If you want to model the flap for use later in CFD, one way you can do it is as shown in this video, from 9:40 onwards.

https://youtu.be/zOoXH5xoZXo?si=F9YevhXMFjL0fD3y&t=580

I made a simple example, see attached.

With this method you can use the XForm tab on the flap to set it to the desired position and deflection/rotation.

Hope this helps!

Regards,

Grant.