1.

For a steady flow, the velocity potential function for velocity V can be given by _______

A. u = -δϕ/δx, v = δϕ/δy, w = δϕ/δx
B. u = δϕ/δx, v = δϕ/δy, w = δϕ/δx
C. u = -δϕ/δx, v = -δϕ/δy, w = δϕ/δ
D. u = -δϕ/δx, v = -δϕ/δy, w = -δϕ/δx
Answer» E.


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