1 - Basics

# 1 - Basics - MEM420 Aerodynamics Dr A Yousuff MEM/Drexel...

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MEM420 Aerodynamics Dr. A. Yousuff MEM/Drexel

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basics Yousuff Aerodynamics 2 Course objective: Determine Lift, Drag, and Moment Caused due to pressure and shear stress distribution around the object
Pressure distribution Yousuff Aerodynamics 3

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determination Yousuff Aerodynamics 4 y x upper surface lower surface Determine N (normal), A (axial), and M Determine L (lift), D (drag), and M
‘Elemental’ contributions Yousuff Aerodynamics 5 Let s u ( s l ) denote location along upper (lower) surface. p u ( s u ), t u ( s u ), p l ( s l ), l ( s l ). Contribution to normal force dN u , from an elemental area dS = (ds)(1) is

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General expressions Yousuff Aerodynamics 6 Forces, and moments about LE, over a unit width object     sin cos sin TE TE u u u l l l LE LE A p ds p ds t  (1.8)         cos sin sin cos cos sin sin cos TE LE u u u u u LE TE l l l l l LE M p x p y ds p x p y ds   (1.11)
tools needed Yousuff

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## This note was uploaded on 04/23/2011 for the course MEM 420 taught by Professor Ajamal during the Spring '11 term at Drexel.

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1 - Basics - MEM420 Aerodynamics Dr A Yousuff MEM/Drexel...

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