[opeNewbie]

hi all,
I would like to subtract a constant value (the input velocity 0.0012 m/s) from my simulated velocity in the x-direction v_x. That way I get just the changes of the velocity v_xnew.

I simulated a Karmann Vortex street around a cylinder and I want to get w nice arrow field for the spinning velocity. If I dont correct my velocity, I get arrows going in one direcktion, that doesnt look like Kamman Street at all (picture1). I already manage to make it manual for one time step (picture2).

How can i make it for the other time steps, is there a function that I can youse?


picture1: without correction of the velocity
picture2: after manual velocity correction (v_xnew = v_x-0.0012)

[tomf]

Hi,

You can use a calculator:

Unew=U-0.012*iHat

Than make glyphs from Unew.

Regards,
Tom