Chapter 7

Question 1

What is an external flow?

Question 2

How does the velocity boundary layer thickness vary with distance from the leading edge for laminar flow over a flat plate?

Question 3

How does the velocity boundary layer thickness vary with distance from the leading edge for turbulent flow over a flat plate?

Question 4

What determines the relative velocity boundary layer thickness for laminar flow?

Question 5

What determines the relative velocity boundary layer thickness for turbulent flow?

Question 6

What determines the relative thermal boundary layer thickness for laminar flow?

Question 7

What determines the relative thermal boundary layer thickness for turbulent flow?

Question 8

What determines the relative concentration boundary layer thickness for laminar flow?

Question 9

What determines the relative concentration boundary layer thickness for turbulent flow?

Question 10

How does the local convection heat or mass transfer coefficient vary with distance from the leading edge for laminar flow over a flat plate?

Question 11

How does the local convection heat or mass transfer coefficient vary with distance from the leading edge for turbulent flow over a flat plate?

Question 12

How does the local convection heat or mass transfer coefficient vary with distance from the leading edge for flow in which transition to turbulence occurs on the plate?

Question 13

How is local heat transfer from the surface of a flat plate affected by the existence of an unheated starting length?

Question 14

What are the manifestations of boundary layer separation from the surface of a circular cylinder in cross flow?

Question 15

How is boundary layer separation influenced by whether the upstream flow is laminar or turbulent?

Question 16

How is variation of the local convection coefficient on the surface of a circular cylinder in cross flow affected by boundary layer separation?

Question 17

How is variation of the local convection coefficient on the surface of a circular cylinder in cross flow affected by boundary layer transition?

Question 18

Where do local maxima and minima in the convection coefficient occur on the surface of a circular cylinder in cross flow?

Question 19

How does the average convection coefficient of a tube vary with its location in a tube bank?

Question 20

For jet impingement on a surface, what are distinguishing features of the free jet?

Question 21

For jet impingement on a surface, what are distinguishing features of the potential core?

Question 22

For jet impingement on a surface, what are distinguishing features of the impingement zone?

Question 23

For jet impingement on a surface, what are distinguishing features of the wall jet?

Question 24

At what location on the surface of an impinging jet will a maximum in the convection coefficient always exist?

Question 25

Under what conditions will there be a secondary maximum?

Question 26

For an array of impinging jets, how are flow and heat transfer affected by the manner in which spent fluid is discharged from the system?

Question 27

What is the difference between a packed bed and a fluidized bed of solid particles?

Question 28

What is an empirical heat or mass transfer correlation?

Question 29

What are the inherent dimensionless parameters for forced convection?

Question 30

What is film temperature?