petsc-3.12.5 2020-03-29
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multicomponent
ex19.c
Nonlinear driven cavity with multigrid in 2d.
The 2D driven cavity problem is solved in a velocity-vorticity formulation.
The flow can be driven with the lid or with bouyancy or both:
-lidvelocity <lid>, where <lid> = dimensionless velocity of lid
-grashof <gr>, where <gr> = dimensionless temperature gradent
-prandtl <pr>, where <pr> = dimensionless thermal/momentum diffusity ratio
-contours : draw contour plots of solution