CFD Online Discussion Forums - forces / forceCoeffs on Multiple Patches

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- - forces / forceCoeffs on Multiple Patches (https://www.cfd-online.com/Forums/openfoam-post-processing/141482-forces-forcecoeffs-multiple-patches.html)

Quote:

Originally Posted by Yann (Post 804661)

Hello Alan,

As the name suggests, the "patches" parameter can take several patches. You just have to list there all the patches your need to compute the proper force coefficients. Something like this:

Code:

patches        (SHMnose SHMmid SHMsupports);

rho            rhoInf;

rhoInf        1;

liftDir        (0 0 1);

dragDir        (1 0 0);

CofR        (0.72 0 0);

pitchAxis    (0 1 0);

magUinf        20;

lRef        1.42;

ARef        0.75;

Cheers,
Yann

Thanks Yann, finally found the correct the multi bodies syntax !

Thanks quarkz!

With help from people like you and Yann, I might just accomplish my goal of attaining a basic proficiency in external aerodynamics. Related to that, my current effort is to simulate flow through a 3D radiator, having gotten the 2D case to work, with Yann's help.

To do this, I will be making use of setSet, as taught by Tobias Holzmann in his video. It's a sure thing that I will have problems, so stay tuned!

Alan w