

MCQOPTIONS
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1. |
Which of these is the linearized perturbation velocity potential equation over a thin airfoil in a supersonic flow? |
A. | λ2(ϕxx + ϕyy) = 0 |
B. | ϕxx + ϕyy = 0 |
C. | λ2ϕxx + ϕyy = 0 |
D. | λ2ϕxx + ϕxy = 0 |
Answer» D. λ2ϕxx + ϕxy = 0 | |