External Incompressible flow Boundary conditions

April 10, 2006, 12:00

hi I am not able to figure out boundary conditions for a 3d mesh having a body shell of supermileage car that is to be simulated using fluent 6.1 at 34 m/s of air speed. The general velocity inlet and pressure outlet are leading to divergence in viscous models. Please help at the earliest

Warm Regards Himanshu Almadi Delhi College of Engineering

April 11, 2006, 02:12

Please check if u have scaled the model accurately.Which turbulence model u r using? Also check, turbulence properties at inlet and outlet. I feel that vel inlet and pr out shud work.

ramins · November 13, 2009, 09:17

hi
I want to model an incompressible external flow over a flat plate. whlie I want to set the far-field boundary condition, Fluent gives me a msg that far-field could only be used with ideal gas which is a compressible flow case.
please help me, what should I do to model far-field?

April 10, 2006, 12:00	External Incompressible flow Boundary conditions	#1
Himanshu Almadi Guest Posts: n/a	hi I am not able to figure out boundary conditions for a 3d mesh having a body shell of supermileage car that is to be simulated using fluent 6.1 at 34 m/s of air speed. The general velocity inlet and pressure outlet are leading to divergence in viscous models. Please help at the earliest Warm Regards Himanshu Almadi Delhi College of Engineering

April 11, 2006, 02:12	Re: External Incompressible flow Boundary conditio	#2
Rags Guest Posts: n/a	Please check if u have scaled the model accurately.Which turbulence model u r using? Also check, turbulence properties at inlet and outlet. I feel that vel inlet and pr out shud work.

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November 13, 2009, 09:17		#3
ramins New Member ramin Join Date: Jun 2009 Posts: 2 Rep Power: 0	hi I want to model an incompressible external flow over a flat plate. whlie I want to set the far-field boundary condition, Fluent gives me a msg that far-field could only be used with ideal gas which is a compressible flow case. please help me, what should I do to model far-field?