1.

Which of these assumptions is invalid for the linearized velocity potential equation?

A. ( frac {u^{ }}{V_ } ) << 1
B. ( frac {v^{ }}{V_ } ) << 1
C. ( frac {w^{ }}{V_ } ) >> 1
D. ( frac {w^{ }}{V_ } ) << 1
Answer» D. ( frac {w^{ }}{V_ } ) << 1


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