[jomunkas]

Hi,



What is the difference between the REF_LENGTH and SEMI_SPAN values. How do they influence the force coefficients in case of a rotating frame?


I see RefLength is used for calculating the momentum coefficients (for example in CNSSolver.cpp). Where can I find for what the SEMI_SPAN value is used for?



if (iDim == 3) {
MomentViscous[0] += (Force[2]*MomentDist[1] - Force[1]*MomentDist[2])/RefLength;
MomentX_Force[1] += (-Force[1]*Coord[2]);
MomentX_Force[2] += (Force[2]*Coord[1]);
...


Regards,
Peter