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Homework #6 P1: Conceptual questions. (a) What is a “boundary layer?” How does its thickness change as fluid travels ove
Posted: Wed Apr 27, 2022 8:20 pm
by answerhappygod
- Homework 6 P1 Conceptual Questions A What Is A Boundary Layer How Does Its Thickness Change As Fluid Travels Ove 1 (94.93 KiB) Viewed 33 times
Homework #6 P1: Conceptual questions. (a) What is a “boundary layer?” How does its thickness change as fluid travels over a solid surface? [8 points] (b) How to differentiate laminar and turbulent flows? [8 points] What is D for a rectangular duct PVD (c) Reynolds number inside a duct is defined as Re = with a 4-inch by 6-inch cross section? [8 points] (d) What is the entrance length? How can one calculate it? [8 points] (e) How would you calculate the friction factor for laminar and turbulent flows? [8 points] (f) What is the resistance coefficient for a sharp entrance? [8 points] (g) How would increasing the surface roughness change the friction factor (f) for a laminar flow? [8 points]