Elliptic relaxation for near wall turbulence models
Elliptic relaxation for near wall turbulence models
Elliptic relaxation for near wall turbulence models
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Conclusions<br />
The elliptic <strong>relaxation</strong> approach reproduces the<br />
<strong>near</strong>-<strong>wall</strong> effects.<br />
No need <strong>for</strong> damping functions or distance from the<br />
<strong>wall</strong>.<br />
With full Reynolds stress model too expensive (13<br />
equations)<br />
v 2 − f with EVM, cheaper but stiff due to boundary<br />
conditions.<br />
ϕ − f better. Same effects but allows <strong>for</strong> uncoupling of<br />
equations, can be used in industrial codes.<br />
Tested in separated, impinging and buoyant flows.<br />
It is still more expensive than two-equation <strong>models</strong>.<br />
<strong>Elliptic</strong> <strong>relaxation</strong> <strong>for</strong> <strong>near</strong> <strong>wall</strong> <strong>turbulence</strong> <strong>models</strong> – p. 22/22
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