Q.

What is D’Alembert’s Paradox?

A. Resistance= 0
B. Drag force= 0
C. Temperature = 0
D. Pressure gradient= 0
Answer» B. Drag force= 0
Explanation: D’Alembert’s Paradox states that for an incompressible and inviscid flow potential flow, the drag force is equal to zero. The fluid is moving at a constant velocity with respect to its relative fluid.
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