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ME EN 515 Andrew Ning aning@byu.edu

Boundary Layer FundamentalsLecture 10

Boundary Layer

stagnation point

laminarturbulenttransition

separation

wakevelocity deficit

Boundary Layer Profile

laminar

turbulent

Wall Shear Stress

Transition

https://www.youtube.com/embed/XOLl2KeDiOg

Factors that affect transition

Separation

Cylinder

Cp

NASA

Drag of a Sphere

NASA

Skin friction vs Pressure Drag

actual body

effective body

Lift Curve

cl

Title Text

T. J. Mueller from “An Album of Fluid Motion”

laminar

turbulent

F

turbulent

Fturbulent