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Height of boundary layer

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Old   April 16, 2007, 09:35
Default Height of boundary layer
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DAK565656
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Let's sat that we have an airfoil and we want to calculate drag force. And we're going to use turbulent model such as k-omega or SST. As far as I understand, the height of boundary layer on the surface of the airfoil will be different in every point along this surface, especially when angles of attack are high. This difference can be very essential from leading to trailing edge. So, if I want to calculate drag force, I will have to model the growth of boundary layer to the trailing edge. The problem here is that I didn't see tools that will allow me to build such kind of boundary layer. I only can build boundary layers with static height along all the surface of airfoil, and if I want to get positive results, I need to increase this static height along all surface for it could give me the same results such as it was dynamic BL. Am I right?
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Old   April 16, 2007, 18:24
Default Re: Height of boundary layer
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Glenn Horrocks
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Hi,

You can make the prism layers larger along the airfoil. You can split the surface into sections and increase the size in each section.

Glenn
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Old   April 19, 2007, 11:30
Default Re: Height of boundary layer
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DAK565656
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Could you tell me how can I do it in ICEM CFD 10?
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