Thank you so much for the video. I think it could be better to use Surface Normals and then compute (Velocity.Normals) and then integrate with Integrate variables and then calculate flowrate based on this. Using mag(U) to calculate the flow rate is not a general solution and works in specific cases

@CFDAsmaaHadane

Жыл бұрын

Thanks for your contribution, your suggestion could be helpful for other users.

Dear Ms Hadane. This was a very useful presentation. You have saved me hours. Thanks hugely. (One minor fluids correction: the volume flow would be the integrated normal component velocity through the surface, not the velocity magnitude. This would account for backflow through the surface).

you helped me again Asmaa! Thank you!

This video helped me a lot. Thank you very much for making it.

Well done video! Very helpful.

This video help me a lot. Thank you very much.

Well ,mag(U) > integrateVariables gives wrong values if flow vector is not perpendicular to the surface. Besides the flow angle, it also neglects the direction of flow and does not calculate the net flux.

@CFDAsmaaHadane

2 жыл бұрын

True ! it is applicable is this case since the flow direction is perpendicular to the surface

Thank you so much! Great content

You are a life saver!

Thankyou for the video. How can we address the value of alpha when calculating flowrate in interfoam?

Hi dear Asmaa, thank you for your share. I'm working on my PhD thesis, can I ask my questions about the OpenFOAM if I had please?

Hello, I'm trying to calculate the pressure drop between inlet and outlet. For this purpose, i am trying to calculate the mass-weighted pressure which i couldn't yet. Do you have any idea how i can calculate this value and find the total pressure drop? Also i've to mention that the flow is incompressible.

how to do it for Cylinder2D? I searched and got a formula to multiply density * velocity_X (if the flow is primarily in the x-direction). But I cannot find the density option in the Calculator in Paraview. Can you please tell me how to do it? Please reply

Thank you

How can i plot head vs time plot in tank drain

I have a new doubt, in case that i wish to know what is the cumulative volume of the bubbles on the outlet, how could i get it?

Many many thank you.

@CFDAsmaaHadane

Жыл бұрын

Welcome!

@ajarivas72

6 ай бұрын

@@CFDAsmaaHadane How can you install *AI agents* on the Paraview Python console? What about *tensorflow* ?

how can ı install on my laptop for win 10, thanks a lot

@BobBeatski71

3 жыл бұрын

Jozsef Nagy has videos of install to Win10.

you can just rename 0 folder as 0.org and paraview ignores it. Nice, Thanks!

As far as I know flow rate = rho V A , are u assuming that the bubbles density is 1 ? because this is miss leading what you are calculating is a mass flux not flow rate .

@sharshabillian

3 жыл бұрын

rho U A is mass flow rate. only U A is volumetric flow rate.

Don't think this is entirely correct, in that you are first getting the magnitude of velocity and integrating over a surface, i.e. you're taking the dot product of velocity vector with itself. What you should do is the dot product of the velocity with the normal vector of each patch element to get flux.