low velocity but high mach number? it is true! -- CFD Online Discussion Forums

October 2, 2008, 19:52	low velocity but high mach number? it is true!	#1
frank Guest Posts: n/a	hi all, I am modeling a electro-chemical reaction flow in cfx11.0 with velocity about 1.0~2.0 m/s, but the density will change (2~3 times) along the flow channel. When I solve this problem with normal incompressible N-S equation. The solver will stop with error message "the current mach number is **",which is much more than 1.0. How to deal with this problem? Any comment will be appreciate! Thanks. frank

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