Is ITW DNS? No, it is not. ITW is how a turbulence model deals with the wall boundary condition. DNS does not use a turbulence model at all as all turbulence scales are resolved. But ITW is more expensive than wall functions.
Is ITW too costly for real CFD applications? That depends on what you are modelling and what resources you have available. There are certainly many cases where it is practical. Is ITW more accurate than AWT? Sometimes, but not all the time. |
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