Fundamentals Of Thermal-fluid Sciences In Si Units
5th Edition
ISBN: 9789814720953
Author: Yunus Cengel, Robert Turner, John Cimbala
Publisher: McGraw-Hill Education
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Chapter 15, Problem 10P
To determine
The drag coefficient of flow over a given body and the area that can be accounted for the calculation of drag coefficient.
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PROBLEM 2.50
1.8 m
The concrete post (E-25 GPa and a
=
9.9 x 10°/°C) is reinforced with six
steel bars, each of 22-mm diameter (E, = 200 GPa and a, = 11.7 x 10°/°C).
Determine the normal stresses induced in the steel and in the concrete by a
temperature rise of 35°C.
6c
"
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240 mm
240 mm
6₁ =
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For some viscoelastic polymers that are subjected to stress relaxation tests, the stress decays with
time according to
a(t) = a(0) exp(-4)
(15.10)
where σ(t) and o(0) represent the time-dependent and initial (i.e., time = 0) stresses, respectively, and t and T denote
elapsed time and the relaxation time, respectively; T is a time-independent constant characteristic of the material. A
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a measured strain of 0.5; the stress necessary to maintain this constant strain was measured as a function of time.
Determine E (10) for this material if the initial stress level was 3.5 MPa (500 psi), which dropped to 0.5 MPa (70
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Chapter 15 Solutions
Fundamentals Of Thermal-fluid Sciences In Si Units
Ch. 15 - Prob. 1PCh. 15 - Define the frontal area of a body subjected to...Ch. 15 - Prob. 3PCh. 15 - Prob. 4PCh. 15 - Prob. 5PCh. 15 - Prob. 6PCh. 15 - Name some applications in which a large drag is...Ch. 15 - Prob. 8PCh. 15 - Prob. 9PCh. 15 - Prob. 10P
Ch. 15 - Prob. 11PCh. 15 - What is the difference between skin friction drag...Ch. 15 - Prob. 13PCh. 15 - What is the effect of streamlining on (a) friction...Ch. 15 - What is flow separation? What causes it? What is...Ch. 15 - Prob. 16PCh. 15 - Prob. 17PCh. 15 - Prob. 18PCh. 15 - The resultant of the pressure and wall shear...Ch. 15 - Prob. 20PCh. 15 - Prob. 21PCh. 15 - Prob. 22PCh. 15 - Prob. 24PCh. 15 - Prob. 25PCh. 15 - Prob. 26PCh. 15 - Prob. 27PCh. 15 - A submarine can be treated as an ellipsoid with a...Ch. 15 - Prob. 29PCh. 15 - During major windstorms, high vehicles such as RVs...Ch. 15 - Prob. 31PCh. 15 - Prob. 32PCh. 15 - Prob. 33PCh. 15 - Prob. 34PCh. 15 - Prob. 35PCh. 15 - Prob. 36PCh. 15 - Prob. 37PCh. 15 - Prob. 38PCh. 15 - Prob. 39PCh. 15 - Prob. 40PCh. 15 - Prob. 41PCh. 15 - Prob. 42PCh. 15 - Prob. 43PCh. 15 - Prob. 44PCh. 15 - Prob. 45PCh. 15 - Prob. 46PCh. 15 - Prob. 48PCh. 15 - Prob. 49PCh. 15 - Prob. 51PCh. 15 - Prob. 52PCh. 15 - Prob. 53PCh. 15 - Prob. 54PCh. 15 - Prob. 55PCh. 15 - Prob. 56PCh. 15 - Prob. 57PCh. 15 - Prob. 58PCh. 15 - Prob. 59PCh. 15 - Prob. 60PCh. 15 - Prob. 61PCh. 15 - Prob. 62PCh. 15 - A 2-m-long, 0.2-m-diameter cylindrical pine log...Ch. 15 - Prob. 64PCh. 15 - Prob. 65PCh. 15 - Prob. 66PCh. 15 - Prob. 67PCh. 15 - Prob. 68PCh. 15 - Prob. 69PCh. 15 - Prob. 70PCh. 15 - Prob. 71PCh. 15 - Prob. 72PCh. 15 - What is induced drag on wings? Can induced drag be...Ch. 15 - Prob. 74PCh. 15 - Prob. 75PCh. 15 - Prob. 76PCh. 15 - Prob. 77PCh. 15 - Consider an airplane whose takeoff speed is 220...Ch. 15 - Prob. 79PCh. 15 - Prob. 80PCh. 15 - Prob. 82PCh. 15 - Prob. 83PCh. 15 - Prob. 84PCh. 15 - Prob. 85PCh. 15 - Prob. 86RQCh. 15 - A 1.2-m-external-diameter spherical tank is...Ch. 15 - Prob. 88RQCh. 15 - Prob. 89RQCh. 15 - Prob. 91RQCh. 15 - Prob. 92RQCh. 15 - Prob. 93RQCh. 15 - Prob. 94RQCh. 15 - Prob. 95RQCh. 15 - Prob. 96RQCh. 15 - Prob. 97RQCh. 15 - Prob. 98RQCh. 15 - Prob. 99RQCh. 15 - Prob. 100RQCh. 15 - Prob. 102RQ
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