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October 26, 2015, 12:27
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Elliptic grid over airfoil
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#1 |
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Member
mechiebud
Join Date: Jan 2015
Posts: 49
Rep Power: 12  |
Hello
I am trying to generate elliptic grid over an airfoil. But my grids are moving away from the boundary as I increase the iterations.any.Can some give any idea. why? |
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November 10, 2015, 15:55
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#2 |
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Senior Member
Holger Dietrich
Join Date: Apr 2011
Location: Germany
Posts: 174
Rep Power: 16 |
Which computer language do you use? Which grid-type do you use, I suppose C-grid? The nodes at the branch cut need to be able to float (if you dont know what branch cut means: http://jullio.pe.kr/fluent6.1/help/html/ug/img318.gif).
The grid nodes, which describe the geometry of the airfoil and the outer domain must not be able to float, on the other hand. If all layers of B1 (from i=1, n) are able to float this could be the reason why the first mesh line (which describes the geometry) moves during iterations. Let the layers of B1 be able to float only from i=2, n. B1, B2 = are not allowed to float B3, B4 = able to float |
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November 11, 2015, 01:54
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#3 |
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Member
mechiebud
Join Date: Jan 2015
Posts: 49
Rep Power: 12 |
Thanks Daryl for the response. The problem is resolved.
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