[fireman]

I find this from FLUENT HELP: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.
But, 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.

So can I use MUSCL scheme for simulation of flame propagation? I am not sure that if the flame front has such kind of discontinuities. Thank you!