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Radiation force on a particle (Gor'kov potential)

tw1987
in Classical Physics

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Hello everyone,

I want to calculate or rather simulate a particle movement by influence of a ultrasonic wave. I have read many times that I have to use the acoustic radiation force for calculating the movement of a particle but not why?

At first I calculated the particle movement only with the velocity field and it doesn`t work but why? Is this only possible in the audible range of acoustic frequencies?

 

Can you help me?

Best regards

 

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