integration in postprocessing

mmmn036 · March 31, 2014, 00:21

Hello,

I need to integrate the following equation for all time steps.

U(y) is instantaneous velocity from simulation. y is in vertical direction and C is a constant. I need to calculate it for every meshgrid in x direction (streamwise).

Anyone can help?

Thanks
mmmn

huangxianbei · April 3, 2014, 21:12

Hi
I'm also facing this problem. I found this
http://www.cfd-online.com/Forums/ope...tml#post221235
But I can't compile the code, with the error without .dep file. Perhaps the code only works for of-1.6.

I'm a little confused about the integration in openfoam. If I want to integrate a variable, is it means that sum(U*dL)/L，U is the variable value on the cell center and L is the direction you want to integrate, dL is the length of the cell in this direction

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April 3, 2014, 21:12		#2
huangxianbei Senior Member Huang Xianbei Join Date: Sep 2013 Location: Yangzhou,China Posts: 302 Rep Power: 13	Hi I'm also facing this problem. I found this http://www.cfd-online.com/Forums/ope...tml#post221235 But I can't compile the code, with the error without .dep file. Perhaps the code only works for of-1.6. I'm a little confused about the integration in openfoam. If I want to integrate a variable, is it means that sum(U*dL)/L，U is the variable value on the cell center and L is the direction you want to integrate, dL is the length of the cell in this direction