Calculating the flow rate across sides/curved surface area

Nasir_Aziz · April 22, 2023, 18:33

Hi everyone,

I simulated the mixing of methane gas in water using an MRF model. Below is the description of my model.

Multiphase Eulerian, viscous SST model k-omega dispersed, Implicit formulation, rotor (MRF zone), Stator(stationary zone).

I could find the volume flow rate across at the top and bottom of the MRF zone(shown in image 1,3) using post-processing tools.

My question is:How can I find the volume flow rate moving across the walls (marked by arrows in image 2). Else, is there a better way to quantify/calculate the volume flow rate through the upper, lower and side wards boundaries (“caps”) of the rotating domain?

Thanks in advance

NickFL · April 24, 2023, 11:05

Here is one approach with just post-processing.

1. Create an isosurface of Radial Coordinate (under Mesh variable).
2. Create an isoclip of this surface from the min/max values of Y-Coordinate.
3. Report -> Surface Integral of Radial Velocity over the isoclip. Note, this will give a volumetric flow rate.

Nasir_Aziz · April 25, 2023, 15:30

Hi NickFL,

Thank you for ur response. Will try this it seems like a better alternative

.

Regards

Nasir

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April 24, 2023, 11:05		#2
NickFL Senior Member Join Date: Jun 2009 Location: Technische Universität Chemnitz Posts: 107 Rep Power: 17	Here is one approach with just post-processing. 1. Create an isosurface of Radial Coordinate (under Mesh variable). 2. Create an isoclip of this surface from the min/max values of Y-Coordinate. 3. Report -> Surface Integral of Radial Velocity over the isoclip. Note, this will give a volumetric flow rate.

April 25, 2023, 15:30		#3
Nasir_Aziz New Member Nasir Join Date: Feb 2023 Posts: 4 Rep Power: 3	Hi NickFL, Thank you for ur response. Will try this it seems like a better alternative . Regards Nasir