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hi..how to get right answer about drag measurment?

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Old   October 25, 2013, 09:20
Thumbs up hi..how to get right answer about drag measurment?
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saeed
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im trying to do an exprimental work and then simulate that in CFX and too calculate the drag using formulas MYSELF next to result from CFX.which method i have to use to reach drag(for a submarine model.DARPA SUBOFF).I DONT HAVE ANY INFORMATION about the value of Cd in formula.
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Old   October 26, 2013, 06:51
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Glenn Horrocks
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The equation for Cd is described in any basic fluid mechanics textbook. Even a google search would find that one.
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Old   October 27, 2013, 08:57
Lightbulb thanks alot but
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what do you mean by that.we have a formula that is F=1/2*Cd*ro*A*V^2 and i dont have Cd for a submarine model and i dont have F in this formula.pls help me completely.........................best regards
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Old   October 27, 2013, 17:36
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Let me help you: http://en.wikipedia.org/wiki/Drag_coefficient
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Old   October 28, 2013, 16:33
Red face let tell my question simply..........:)
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i want information about drag coefficient for a suboff model..only its my question..information that are in wikipedia about mercedes ls and sphere and etc...THNAKS
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