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How long should be domain for external flow

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Old   July 25, 2013, 06:27
Default How long should be domain for external flow
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Sasan Ghomi
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Hi friends,

I want to simulate flow around a missile (subsonic flow). some references say the domain around the missile should be 10-15 times length of missile. But I found an article that it's domain was 60 times diameter of missile.
Which one is correct? (10*L Or 60*D )??

I appreciate your help
thanks and best regards,
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Old   July 25, 2013, 07:41
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You should go for 15* Length for upstream and sides and 25* length for downstream
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