continuous small air blast to a specific area on sphere

[KamiGazz]

Hi,
I would like to know what would be the best approach for this...

I want to simulate something like if I'd be blowing through a straw on a wood ball.

If the air blast was aiming at the top of the ball, horizontal, this would cause the ball to rotate.

I thought about using "AddImpulseToPoint" for this but... this would be more of a one shot deal blast...

Is there a function like "AddForceToPoint"?

Or should I simply calculate the resulting torque and use "Addtorque"?


The part where I struggle the most is that I don't want to addImpulse indefinitely so the ball would always be accelerating...

In reality, if a stable airblast is continue, the ball would reach a top speed and stop accelerating, isn't it?

Thx in advance for your help!

[Julio Jerez]

you do not have to apply impulese,

you need to assigne a force and torque call back, and there accumulate all the forces and or the torques generated by each indiducla force representing a stream for the blas of air.
then apply the force to teh bal and it soudl work.