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帮助里面这样说的:
This third-order convection scheme was conceived from the original MUSCL (Monotone
Upstream-Centered Schemes for Conservation Laws) by blending a central dierencing
scheme and second-order upwind scheme .
Unlike the QUICK scheme which is applicable to structured hex meshes only, the MUSCL
scheme is applicable to arbitrary meshes. Compared to the second-order upwind scheme,
the third-order MUSCL has a potential to improve spatial accuracy for all types of meshes
by reducing numerical diffusion, most significantly for complex three-dimensional flows,
and it is available for all transport equations.
The third-order MUSCL currently implemented in FLUENT does not contain any flux-limiter. As a result, it can produce undershoot and overshoot when the flow-field under consideration has discontinuities such as shock waves. |
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