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All bodies have skin-friction contribution more than that from the pressure drag.(a) False(b) TrueI had been asked this question by my college professor while I was bunking the class.Enquiry is from Turbulent Flow in section Incompressible Flow over Airfoils of Aerodynamics |
Answer» CORRECT answer is (a) False The explanation: The GIVEN statement is incorrect. For streamlined bodies, the drag distribution is 85% and 15% for skin-friction and pressure drag respectively. But as the body BECOMES less streamlined, the case GETS REVERSED. i.e for blunt bodies pressure drag is more important. |
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