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Centrifugal Force

Posted 9 mar 2016, 04:08 GMT-5 Fluid & Heat, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers Version 4.3a 0 Replies

Rosie Inman
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Hi,

I would like to include centrifugal force in my COMSOL (version 4.3a) model of a curved channel with laminar flow containing small particles.

Is it necessary for COMSOL to find the first and second time derivatives of the particles moving in x and y directions (to find the velocity and acceleration of these particles) at each point on the particle trajectory as the particles flow round the curve, and plug these values into the equation for the radius of curvature;

R= (x^'2+y^'2 )^(3/2)/(x^' y^''-y^' x^'' )

Since the radius of curvature is changing continuously for each particle?

Would COMSOL then use this R value to calculate the centrifugal force

F = mR(ω^2)

at each position the particle occupies?

Thanks in advance for any help that can be offered on this!
0 Replies Last Post 9 mar 2016, 04:08 GMT-5
COMSOL Moderator

Hello Rosie Inman

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