How to calculate the efficiency of the Flexible airfoils by changing force.c -- CFD Online Discussion Forums

August 9, 2023, 23:24

How to calculate the efficiency of the Flexible airfoils by changing force.c

GrpOne123

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Grp

Join Date: Feb 2023

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Hello everyone! I want to calculate the efficiency of the Flexible airfoils.
I have changed the force.c file in openfoam to calculate the efficiency,but the result comparing with the paper is wrong.May be my code is wrong, I don't know how to fix it.Could any one check my code ? Thanks.
Below is my formula and my code.

the p*ny - tauyj*nj is it means lift force in y? ps: the S is the patch

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