fluid_mechanics

Answers to Selected Even-Numbered Homework Problems
ANS-5
9.6 Fig. 9.6c
9.12 1.12 m, 7.92 10 3 m
9.14 6.65 10 6 m 2 s
9.16 7.54 10 3 fts; 0.471 fts; 2.62 10 5 fts
9.22 1a2 27.6 fts; 1b2 20.5 mph
9.30 d 4.121nxU, w 4U132
9.36 Larger by a factor of 4
9.38 48.8 lb
9.40 10,300 lb
9.42 1.4, upright
9.44 85.4 kW
9.46 2
9.48 0.0296 N
9.50 12.9 hp
9.52 1.06 m s
9.54 16.8 ft s
9.58 1.10 10 7 ms, 1.20 10 7 ms
9.60 162 ft lb
9.62 8,950 N m
9.64 0.350 hp
9.66 greater
9.68 58.4 hp
9.72 180 N
9.76 7220 m s 2
9.78 9.65 lb ft 2
9.80 0.841 ft s 2
9.86 41.6 ft s
9.90 1a2 0.0166 hp; 1b2 32.4 hp
9.92 11.2 ft
9.94 0.288
9.96 405 lb
9.98 1.72 U sea level
9.104 19.1
9.106 5.72% increase
9.110 28.4%
Chapter 10
10.2
10.4 1a2 supercritical; 1b2 supercritical;
1c2 subcritical
10.8 5.66 ft
10.12
10.14
10.16
8.30 fts
616 kmhr
2.45 m; 0.388 m
10.18 1.13 ft; 5.82 ft
10.20 1.77 ft; 1.97 ft
10.24 1.83 ft
10.26 0.694 ft
10.30 0.429 ft
10.34
10.36
7.07 10 5
0.0126
10.38
10.40
5.14 Nm 2
0.0169
10.42
10.44
9.25 ft 3 s
Yes
10.46 Yes
10.48 40.9 m 3 s
25 ms 2
10.50
10.54
10.56
10.58
10.60 1.19 m
10.62 0.840 m
10.64 2.31 ft
10.66 Same
10.68 2.53 ft; Not possible
10.70 8.77 m
10.72 0.368 ft
10.74 2.21 m
10.76 1.64 ft
10.78 0.000816
10.80 0.000664
10.82 0.000269
10.84 0.00757
10.88
10.90
6.22 fts
18.2 m 3 s
17.3 m 3 s
119 m 3 s
13.7 fts
0.00759 ft 3 s
10.92 1a2 0.228 ft; 1b2 8.09, 0.223; 1c2 5.15 ft
10.94 1.51 m, 12,500 kW
10.96 upstream
10.98 4.36 fts
10.100 Yes
10.102 0.116 m 3 s
10.104 4.70 ft
10.106 0.324 fthr; 5.53 hr
10.110 H r 1.294 ft; H t 4.39 ft; triangular
Chapter 11
11.4 1a2 71,700 Jkg; 1b2 100,000 Jkg;
1c2 1.58 kgm 3 ; 1d2 396 Jkg K
11.10 351 K
11.12 1a2 1520 1ft lb2lbm; 1580 1ft lb2lbm;
1b2 1.52 10 5 1ft lb2lbm; 1.95 10 5 1ft lb2lbm;
1c2 4.56 10 5 1ft lb2lbm; 6.80 10 5 1ft lb2lbm
11.16 E vsteel
2.19 10 11 Nm 2 ,c water 1470 ms,
c air 340 ms
11.24 0.625
11.28 1a2 2000 mph; 1b2 2930 fts; 1c2 893 ms
11.36 1a2 2.34 lbms; 1b2 2.51 lbms
11.38 283 ms; 0.89
11.40 269 ms; 0.90
11.46 A 2 0.36 m 2 , p 2 23 kPa 1abs2, T 2 113 K
11.48 1a2 0.483%; 1b2 1.43%; 1c2 0.445%; 1d2 0.0163%
11.54 increase
11.56 11 psia
11.58 2830 lbft 2
11.60 T 1 282 K; p 1 95 kPa 1abs2; T 01 288 K;
p 01 101 kPa 1abs2; V 1 104 ms; T 2
674 K; p 2 45 kPa 1abs2; T 02 786 K;
p 02 84.9 kPa 1abs2; V 2 520 ms
11.62 404 kPa 1abs2; 81.19 K; 31 ms
11.66 2.29
11.68 1.9; 648 ms
11.70 394 K; 82 kPa 1abs2
11.72 1160 R; 132 psia; 26.1 lbms