De Laval nozzle
Hey Guys I'm currently trying to simulate flow through a de laval nozzle to show under expansion, over expansion and barrel shocks etc. I used GAMBIT for meshing..I am totally new to CFD as I'm currently a undergrad student so forgive my ignorance. I'm able to get the desired results for a mesh with interval size 0.5 with inviscid and laminar flows that too with third order discretization. Results diverge for second order discretization. When I try for a mesh with 0.1 interval the results diverge for all orders of discretization.
Can anyone please help??:(
But may be the reason is other. If you use explicit time scheme then you should keep stability Courant condition
So when you have reduced dx (keeping dt=const) this condition could be broken.
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