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August 8, 2011, 03:51 |
How to set an altitude
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#1 |
Member
Charles
Join Date: May 2011
Location: France
Posts: 77
Rep Power: 14 |
Hi,
Simple question, I know it looks obvious but I have a doubt. I have 2 different ways to set the altitude that comes in my mind. I could set the operating pressure to the pressure at this altitude, but I can also go to "Material" and set the density of the air at the proper value. (For the boundary I use velocity inlet in the entrance) I guess it would be bad to do both because it would mean a lighter air at a lower pressure and therefore mean a higher altitude than the one I'm looking to get. So what do you think is the best the altitude in Fluent ? Thanks Charles |
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August 8, 2011, 03:55 |
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#2 |
Member
Charles
Join Date: May 2011
Location: France
Posts: 77
Rep Power: 14 |
By the way, I use a segregated solver because I'm flying at Mach 0.8. So because the segregated solver is pressure based I should set the pressure only ?
Last edited by Santos-Dumont; August 8, 2011 at 07:06. |
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August 8, 2011, 09:23 |
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#3 |
Member
Join Date: Mar 2009
Posts: 85
Rep Power: 17 |
Hi Santos,
If you assing a constant or variable density it is supposed to change due to the operating pressure. So let every parameter to be calculated from the operating pressure. |
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