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2d Windshield De-Icing Mesh Model

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Old   July 25, 2014, 08:25
Default 2d Windshield De-Icing Mesh Model
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Serhan TATAR
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Hello guys,

I am simulation 2D windshield de-icing problem but I have some problems. As you see from the snapshots velocity BL is not smooth. I tryed different mesh models but counter does not changed. Should I at inflation on inlet side also(I added only for windshield)? When I do that, reduced cells are produced..I am new at fluid analysis and Ansys, so your help will be appreciated

Could anyone advise a solution?
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File Type: jpg Velocity Contour_1.jpg (80.3 KB, 23 views)
File Type: jpg Mesh.jpg (89.2 KB, 15 views)
File Type: jpg Mesh_3.jpg (94.1 KB, 11 views)
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Old   July 26, 2014, 14:35
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You don't have enough resolution in the lower pipe. Do you really need to simulate the flow inside that region? Otherwise you could just put your inlet at the top of it…
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Old   July 27, 2014, 07:42
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Quote:
Originally Posted by lovecraft22 View Post
You don't have enough resolution in the lower pipe. Do you really need to simulate the flow inside that region? Otherwise you could just put your inlet at the top of it…
I refined the mesh and results are now better converged. Air inlet must be inclined relative to the front surface so I need this pipe. What do you think about the residuals? It is converged but continuity fluctuates a little bit, is it normal? I solved the problem at steady state with RNG k-eps turbulans model....
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File Type: jpg Velocity.jpg (68.3 KB, 10 views)
File Type: jpg Refined-mesh.jpg (80.9 KB, 11 views)
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