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Aerodynamics engineers obtain the lift and pressure drag by integrating the ___________ distribution over a surface.

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Aerodynamics engineers obtain the lift and pressure drag by integrating the ___________ distribution over a surface.

(a) Velocity

(b) Pressure

(c) Temperature

(d) Viscosity

I had been asked this question in my homework.

Query is from Research and Design Tool in section Philosophy of Computational Fluid Dynamics of Computational Fluid Dynamics

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Correct choice is (b) Pressure

Easiest explanation: Lift force can be obtained by the difference in pressure between the top and bottom surfaces of a body. Similarly, the pressure drag of a body can be obtained by finding the pressure difference between the front and back halves of a body. Both of these quantities depend upon the pressure distribution.

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