(b)(c)Recognise the difference between the skin friction drag and pressure drag.Explain which of these two drag forces is more significant for slender bodies suchas aerofoils.Identify the difference between streamlined and bluff bodies.Is a tennis ball a streamlined or bluff body? Interpret this using a hypotheticalvelocity of a moving tennis ball.

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Answered: (b) Recognise the difference between…

(b) Recognise the difference between the skin friction drag and pressure drag. Explain which of these two drag forces is more significant for slender bodies such as aerofoils.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.49P

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Question

(b)
(c)
Recognise the difference between the skin friction drag and pressure drag.
Explain which of these two drag forces is more significant for slender bodies such
as aerofoils.
Identify the difference between streamlined and bluff bodies.
Is a tennis ball a streamlined or bluff body? Interpret this using a hypothetical
velocity of a moving tennis ball.

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