流体力学泵与风机课后习题答案详解蔡增基第五版中国建筑工业出版社

1 流体力学泵与风机 2 -1 5 解：（1 ）当1 为空气 21pp  ABphzp  hzpppBA 3.01 0 0 08.9 k p apa9 4.22 9 4 0 （2 ）当1 为油 31pp  zHhppA1 HhppB13 HhzHhpppppBA131 hzh1 1.09 0 0 02.01 0 0 08.91.01 0 0 08.9 k p apa0 4.22 0 4 0 2 -1 6 解：21pp  211hhHppM水 212hhppa汞油 2121hhphhHpaM汞油水 2.01 0 0 08.96.1 37 8 5 02.05.11 0 0 08.99 8 011hh 2 6 6 5 67 8 5 09 8 0 02.09 8 0 05.19 8 0 09 8 011hh 1 9 6 01 4 7 0 09 8 02 6 6 5 61 9 5 01h mh6 3.51  2 -2 8 解：21hhp  2 bhhhbhhhhP02210212145sin45sin21 145sin22310008.9145sin232310008.92100 kNN65.343465022510008.9 PblhhhblhhhhlDDD2022110212145sin45sin21 m45.222510008.9222210008.92322210008.9 2-32 解：bhhbhhP02202145sin2145sin 222221 0 0 08.921222211 0 0 08.9 kNN8576.1106.1108572810008.9 PhhbhhhhbhhlD02102202102145sin3245sin2145sin245sin 281 0 0 08.9237241 0 0 08.922241 0 0 08.9 261 3 26722613pl TPGlTlPlG 22672810008.9162.19T kNT31.10134.27481.9 2-41 解：245sin0  rh bhhPx21 421221 0 0 08.9 3 kNN2.3939200 VPz brrr00245cos45sin2136045 4212281214.310008.92 kNN344.2222344 kNP1.45344.222.3922 03057.0arctan2.39344.22arctanarctanxzPP 3-3 解：（1）smvdQ/0049.010025.04432323 skgQ/9.4 （2）smvddv/625.032131 smvddv/5.232232...