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October 30, 2008, 11:03 |
Cd and Ca coefficient with CFX
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#1 |
Guest
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Hi,
I'm trying to compute the drag coefficient and the added mass coefficient with CFX but I have some issues with the values I shall take. For the drag coefficient I'm using Force_X@body but to get the Cd coeffcient which value of velocity and area should I take ? What is the methodology to get the Ca ? Thank you for your help |
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October 30, 2008, 19:07 |
Re: Cd and Ca coefficient with CFX
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#2 |
Guest
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Hi,
What is Ca? Cd is referenced to a sensible velocity. For something like external aerodynamics of a wing or a car it is usually the far-field velocity. Glenn Horrocks |
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October 31, 2008, 02:47 |
Re: Cd and Ca coefficient with CFX
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#3 |
Guest
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Ca is the added mass coefficient
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October 31, 2008, 09:17 |
Re: Cd and Ca coefficient with CFX
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#4 |
Guest
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nobody knows about the added mass coefficient. I heard you can use an oscillating flow but i don't know how to set it up. Thank you for your answers
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