Fundamentals of Heat and Mass Transfer
7th Edition
ISBN: 9780470501979
Author: Frank P. Incropera, David P. DeWitt, Theodore L. Bergman, Adrienne S. Lavine
Publisher: Wiley, John & Sons, Incorporated
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Textbook Question
Chapter 7, Problem 7.3P
Consider steady, parallel flow of atmospheric air over a flat plate. The air has a temperature and free stream velocity of 300 K and 25 m/s.
- Evaluate the boundary layer thickness at distances of
- Evaluate the surface shear stress and the y-velocity component at the outer edge of the boundary layer for the single plate at
- Comment on the validity of the boundary layer approximations.
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air at atmospheric pressure and 23ºC flows over a flat plate with a velocity of 15m/s. Determine;
i) the thickness of the boundary layer at a distance 0.6m from the leading edge.
ii)if the plate is now heated to a temperature 131ºC, how much heat is transfered from one surface of length 4m and of unit width?
Laminar thermal boundary layer and associated temperature distribution related to flow on a flat plate at constant temperature are given below. The temperature distribution given shows the values at x = x. Free flow Isl sinur layer a) Does the fluid heat the plate? Is it cooling?
Air at 1 atm with a velocity of 4 m/s and a temperature of 50oC flows over a flat plate that is at a uniform temperature of 100oC. The plate has a length of 0.20 m and a width of 0.1 m.
a) What is the average heat transfer coefficient?
b) What is the heat transfer rate from plate to the air?
c)What is the average friction coefficient and the drag force ?
d)What is the heat transfer coefficient at x=0.15 m ?
Chapter 7 Solutions
Fundamentals of Heat and Mass Transfer
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