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Showing results 1 to 8 of 8 Search took 0.00 seconds. Search: Posts Made By: shardiali

Forum: Main CFD Forum December 5, 2012, 04:34

Replies: 17 Doubts about turbulence in a micro channel Views: 1,994 Posted By shardiali That is a very good comment! I think I am totally... That is a very good comment! I think I am totally in favor of your idea that characteristic length would be the length which affects the flow more severly although this is not always easy to find...

Forum: Main CFD Forum December 4, 2012, 12:07

Replies: 17 Doubts about turbulence in a micro channel Views: 1,994 Posted By shardiali Can you give me any reference regarding to your... Can you give me any reference regarding to your statement? Thank you,

Forum: Main CFD Forum December 3, 2012, 12:08

Replies: 17 Doubts about turbulence in a micro channel Views: 1,994 Posted By shardiali Thank you for the prompt answer. But how do you... Thank you for the prompt answer. But how do you define very thin? Now i am simulating a fin with 3.5mm (streamwise) by 0.2mm dimensions. I think this might be considered as a plate and maybe in...

Forum: Main CFD Forum December 3, 2012, 07:27

Replies: 17 Doubts about turbulence in a micro channel Views: 1,994 Posted By shardiali In other words, knowing my problem (Re=1800, flow... In other words, knowing my problem (Re=1800, flow over a rectangular ocylinder) do you think that refining the mesh or smaller time steps while using the laminar model, helps me to have the vortex...

Forum: Main CFD Forum December 3, 2012, 06:57

Replies: 17 Doubts about turbulence in a micro channel Views: 1,994 Posted By shardiali I get no vortex shedding in the case of a... I get no vortex shedding in the case of a rectangular fin. I made a very thin 3D model with symmetric boundary conditions (infinitly long rectangular cylinder which is literaly 2D). I calculated the...

Forum: Main CFD Forum December 3, 2012, 04:24

Replies: 17 Doubts about turbulence in a micro channel Views: 1,994 Posted By shardiali This is good news for me. I ran a 2D simulation... This is good news for me. I ran a 2D simulation for a cylinder in an external flow with laminar model and I got a nice vortex street (for Re=600). However I cannot get a nice result for a rectangular...

Forum: Main CFD Forum December 3, 2012, 03:26

Replies: 17 Doubts about turbulence in a micro channel Views: 1,994 Posted By shardiali Dear FMDenaro My question would be dumb, but... Dear FMDenaro My question would be dumb, but what you mean is that I may be able to perform my simulation with the laminar model, is it true? Thanks for the answer, Alireza

Forum: Main CFD Forum December 1, 2012, 09:45

Replies: 17 Doubts about turbulence in a micro channel Views: 1,994 Posted By shardiali Doubts about turbulence in a micro channel Dear fellows, I am trying to simulate the flow in a 3D micro channel with different micro structures. The flow is laminar within the channel since Re number is under 2300, however the question is if...

Showing results 1 to 8 of 8

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