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How to simulate 3D open channel turbulent flow with free surface

Posted May 4, 2011, 11:12 a.m. EDT 3 Replies

Tamotsu Nakandakari
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Hi

I want to simulate open channel flow with free surface.
I don't know what kind of physical interface can be used to simulate it.
Moving mesh?
Gas-liquid 2 phase flow?
Fluid-structure coupling?
PDE mode?
CFD module?

thanks
3 Replies Last Post Aug 12, 2011, 4:54 a.m. EDT
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Hello Tamotsu Nakandakari

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Tim Sønderby
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Posted: 1 decade ago Jun 6, 2011, 2:50 p.m. EDT
Hei,

I am working on the same kind of problem, did you find a solution?
Hei, I am working on the same kind of problem, did you find a solution?
Tamotsu Nakandakari
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Posted: 1 decade ago Jun 6, 2011, 8:13 p.m. EDT
Hi,

No, I didn't.
But I got some advise from Japanese customer center.
Moving mesh and PDE are basically used.
CFD is needed in the case of turbulant flow analysis.
Multiphase flow (air-liquid) is no need.

To use PDE, we have to prepare the governing equations that describe the flow we want to analyze.

I don't know how to set Moving mesh.

Please refer to attach file.
Hi, No, I didn't. But I got some advise from Japanese customer center. Moving mesh and PDE are basically used. CFD is needed in the case of turbulant flow analysis. Multiphase flow (air-liquid) is no need. To use PDE, we have to prepare the governing equations that describe the flow we want to analyze. I don't know how to set Moving mesh. Please refer to attach file.
Atish Surana COMSOL Employee

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Posted: 1 decade ago Aug 12, 2011, 4:54 a.m. EDT
Can someone comment on how can a water flow (with given volumetric flow & pressure) in an open surface irrigation canal be modeled?
Can someone comment on how can a water flow (with given volumetric flow & pressure) in an open surface irrigation canal be modeled?

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