BC´s natural convection?? -- CFD Online Discussion Forums

March 14, 2005, 11:06	BC´s natural convection??	#1
Thomas Guest Posts: n/a	Hello, I want to simulate natural convection in a simple chimney. I don´t want to use the boussinesq modell, as delta T is about 40 K. I have a pressure inlet at the bottom and a pressure outlet at the top. The sourrunding walls have a temperature condition. How do I have to specify to density when I use the incompressible ideal gas law? How do I specify the operating density? I´ve read in a tutorial that I should set the operating density to 0.?? Thank you for your help! Thomas

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