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Surface roughness
Posted 2012年12月24日 GMT-5 23:09 Version 3.5a 1 Reply
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Hi,
I'm new to COMSOL Multyphisics. I successfully built a 3D model of Laminar pipe flow. My idea is to build a pipe that is made of stainless steel and then change to glass with the same diameter. I want to know whether the velocity of the flow is still the same when the fluid flow from steel surface to glass surface. So, I decided to change the surface roughness for the pipe. Do anyone know what type of model that I need to used to change the surface roughness. I hope someone can help me on this.
Thank you.
I'm new to COMSOL Multyphisics. I successfully built a 3D model of Laminar pipe flow. My idea is to build a pipe that is made of stainless steel and then change to glass with the same diameter. I want to know whether the velocity of the flow is still the same when the fluid flow from steel surface to glass surface. So, I decided to change the surface roughness for the pipe. Do anyone know what type of model that I need to used to change the surface roughness. I hope someone can help me on this.
Thank you.
1 Reply Last Post 2012年12月25日 GMT-5 09:57
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Posted:
1 decade ago
Hi
fluid flow does not depend on the material (so long you are not studying heat transfer too, but really "just" the surface roughness, if your flow is quasi stationary, the wetting effect might influence too and this is surface maerial and treatment dependent.
I'm not sure there is much of pre-cooked surface roughness in v3.5, there are n v4 and the pipe flow module, and some features in the surface layer, see one of the treads earlier this year, on the same subject
--
Good luck
Ivar
fluid flow does not depend on the material (so long you are not studying heat transfer too, but really "just" the surface roughness, if your flow is quasi stationary, the wetting effect might influence too and this is surface maerial and treatment dependent.
I'm not sure there is much of pre-cooked surface roughness in v3.5, there are n v4 and the pipe flow module, and some features in the surface layer, see one of the treads earlier this year, on the same subject
--
Good luck
Ivar