How to obtain the force by integrating the pressure？

Rinia · June 28, 2019, 21:57

Hey CFDers,
I make a plane section cross the target I study and get a outline on the target. I want to get the force acting on the outline. However I failed to obtain the force by integrating the pressure.
Anyone can provide me some suggestions?

me3840 · June 30, 2019, 22:13

I don't think what you're doing makes any physical sense. You have to multiply by an area which is infinitely small with that method.

You're better off calculating the force as a field and taking a slice of it instead, I think.

June 28, 2019, 21:57	How to obtain the force by integrating the pressure？	#1
Rinia Member Rinia Join Date: Jan 2018 Posts: 42 Rep Power: 8	Hey CFDers, I make a plane section cross the target I study and get a outline on the target. I want to get the force acting on the outline. However I failed to obtain the force by integrating the pressure. Anyone can provide me some suggestions?

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June 30, 2019, 22:13		#2
me3840 Senior Member Join Date: Nov 2010 Location: USA Posts: 1,232 Rep Power: 24	I don't think what you're doing makes any physical sense. You have to multiply by an area which is infinitely small with that method. You're better off calculating the force as a field and taking a slice of it instead, I think.