Compressible flow -- CFD Online Discussion Forums

September 5, 2002, 18:36	Compressible flow	#1
Reza Guest Posts: n/a	Ok, I have asked this before but no one answered. I am solving a compressible flow (Gas) in a pipeline. I am providing the inlet velocity and outlet pressure. The problem is I get lots of ossilations in pressure and outlet flow rate. when I ignore the term d rho/dt in the continuity equation the ossilation disappears but the obviously the mass balance is not conserved. I use SIMPLE method to solve the pressure and velocity field. Anyone knows what should I do?

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