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Reply To: Reversed Magnus effect


Dear Robin,

Thanks for replay. Indeed I applied positive Torque when got clockwise rotation.

the piece of modified code:
T torque=1.0e-7;
indicator[iInd]->setAlpha2( (sumF[2+4*iInd]+torque) / indicator[iInd]->getMofi() );

To determine how the angle is defined I repeated simulation with cube, where I can see rotation direction. with cube for a positive external torque I got that angle theta also increased so I assumed there is the same definition of angle – positive for clockwise rotation.
Later I will look at velocity fields, but next week I am on vacation.However, I am bit confused today as I got that cuboid2d as circle deflects in correct direction now. video

Best regards
Martins Brics