Hello

how can i find the pressure drop across a 2D tube?

Can i use the value given in the pressure contour plot to subtract or do i need to use surface integral to get the pressure?

Please advice

what are your BCs. If you are using Periodic BCs... then its pretty easy Let me know bye Ravi

I have velocity inlet and outflow

Thanks

[Kamu]

Originally Posted by Ravi Kumar Duggirala
;131029

what are your BCs. If you are using Periodic BCs... then its pretty easy Let me know bye Ravi

Hello Ravi, I have periodic BCs and I can not figure out how to get the pressure drop. I tried dp/dz where z-is my streamwise direction the pressure drop I get is different from the pressure gradient in the periodic boundary conditions! After getting this pressure drop how do i use it to get my friction factor since it will be per meter