EBK MANUFACTURING ENGINEERING & TECHNOL
7th Edition
ISBN: 9780100793439
Author: KALPAKJIAN
Publisher: YUZU
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Chapter 40, Problem 31QLP
To determine
Discuss the advantages to long lead times, if any, in production.
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Figure 3 shows the numerical solution of the advection equation for a scalar u along x at three
consecutive timesteps.
1.0
0.8-
0.6
0.4-
0.2
0.0
00
-0.2
-0.4
-0.6-
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
Figure 3: Advection equation, solution for three different timesteps.
Question 2
Figure 3 shows the numerical solution of the advection equation for a scalar u along x at three
consecutive timesteps.
1.0
0.8-
0.6-
0.4-
0.2-
0.0-
-0.2-
-0.4-
-0.6
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
Figure 3: Advection equation, solution for three different timesteps.
a) Provide an explanation what conditions and numerical setup could explain the curves. Identify
which of the three curves is the first, second and third timestep.
b) Consider explicit schemes with central and upwind discretisations. Explain how each of these
candidate discretisations could produce the behaviour shown in Figure 3.
c) Determine the CFL number that was used in the simulation for each of the candidate schemes for
all possible updates.
Assume that the timestep and mesh-width used are constant. Read the data to two digits of
accuracy from Figure 4 shown at the end of the question, which is an enlarged version of Figure 3.
Demonstrate your method and input data for one calculation, but then use a…
Chapter 40 Solutions
EBK MANUFACTURING ENGINEERING & TECHNOL
Ch. 40 - Explain what is meant by manufacturing properties...Ch. 40 - Why is material substitution an important aspect...Ch. 40 - What factors are involved in the selection of...Ch. 40 - How is production quantity significant in...Ch. 40 - List and describe the major costs involved in...Ch. 40 - Why does material selection influence energy...Ch. 40 - Describe life-cycle assessment and life-cycle...Ch. 40 - Define what is meant by economic order quantity.Ch. 40 - Explain the difference between direct-labor cost...Ch. 40 - Describe your understanding of the following...
Ch. 40 - What is the difference between production...Ch. 40 - Is there a significant difference between...Ch. 40 - How would you define value? Explain.Ch. 40 - Define sustainable manufacturing.Ch. 40 - What is the meaning and significance of the term...Ch. 40 - Describe the major considerations involved in...Ch. 40 - What is meant by manufacturing process...Ch. 40 - Prob. 18QLPCh. 40 - Explain why the value of the scrap produced in...Ch. 40 - Prob. 20QLPCh. 40 - Prob. 21QLPCh. 40 - Explain why it takes different amounts of energy...Ch. 40 - Refer to Table 40.2 and explain why it is...Ch. 40 - Explain how the high cost of some of the...Ch. 40 - On the basis of the topics covered in this book,...Ch. 40 - What factors are involved in the shape of the...Ch. 40 - Describe the problems that may have to be faced...Ch. 40 - Prob. 28QLPCh. 40 - Prob. 29QLPCh. 40 - Prob. 30QLPCh. 40 - Prob. 31QLPCh. 40 - Review Table 40.2 and estimate the carbon...Ch. 40 - Explain why the larger the quantity per package...Ch. 40 - Prob. 34QLPCh. 40 - As you can see, Table 40.5 lists only metals and...Ch. 40 - Is it always desirable to purchase stock that is...Ch. 40 - Prob. 37SDPCh. 40 - Prob. 38SDPCh. 40 - Prob. 39SDPCh. 40 - Over the years, numerous consumer products (such...Ch. 40 - List and discuss the different manufacturing...Ch. 40 - Prob. 42SDPCh. 40 - Prob. 43SDPCh. 40 - Select three different products commonly found in...Ch. 40 - Prob. 45SDPCh. 40 - The cross-section of a jet engine is shown in Fig....Ch. 40 - Inspect some products around your home, and...Ch. 40 - Prob. 48SDPCh. 40 - Discuss the trade-offs involved in selecting...Ch. 40 - Discuss the factors that influence the choice...Ch. 40 - Prob. 52SDPCh. 40 - Figure P40.53 shows a sheet-metal part made of...Ch. 40 - The part shown in Fig. P40.54 is a carbon-steel...
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