水力学第赵振兴课后答案.pdf

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1 0 0.1 816.33kg/m 3 0.2 =0.25H H u dy du m 058 . 1 y=0.5H H u dy du m 84 . 0 0.4 f = g 0.5 h L 0.6 F f 184N 0.7 K=1.96 10 8 N/m 2 dp=1.96 10 5 N/m 2 1 1.1Pc=107.4KN/m 2 h=0.959m 1.2P B -P A =0.52KN/m 2 P AK =5.89KN/m 2 P BK =5.37KN/m 2 0 0 du du 1 2 1.3h 1 =2.86m h 2 =2.14m 5m 4.28m 1.4Pc=27.439KN/m 2 1.5P M =750.68h KN/m 2 1.6P 2 -p 1 =218.05N/m 2 1.7 = B A B r A r B A 1.8P=29.53KN P 0 1.9W=34.3rad/s W max =48.5rad/s 1.10a= L h H g ) ( 2 1.12 P=3312.4KN( ) P 2 =862.4KN( ) P=3136KN( ) P 2 =950.6KN( ) 1.13 T=142.9KN 1.14 h 3 =0 T=131.56KN h 3 =h 2 =1.73m T 63.7KN 1.15 0 0 1.2m 1.16 P=4.33KN L D =2.256m( ) 1.17 P=567.24KN 1.19 P 45.54KN 14 28 1.20 P=353KN P=46.18KN 1.21 H=3m 1.22 =1.0cm 1.23 F=25.87KN ( ) 2 2.1 Q=211.95cm 3/ s V 7.5cm/s 2.2 h w =3.16m 2.3 2 p =2.35m 2.4 P K 1 =63.8KN/m 2 2.5 Q=0.00393m 3 /s 2.6 Q=0.0611m 3 /s h 3 3 =h =h 2 2 =1.73m =1.73m 1.2m 1.2m =2.256m( =2.256m( T 63.7KN 63.7KN =46.18KN 3 2.7 =0.985 2.8 Q=0.058m 3 /s 2.9 S 4.9N cm 2 4.9N/cm 2 2.10 V 3 =9.9m/s Q=0.396m 3 /s 2.11 R=391.715KN( ) 2.12 R=3.567KN 37 8 2.13 R=98.35KN( ) 2.14 R=2988.27KN( ) 2.15 R=1.017KN( ) 2.16 R =153.26KN( ) 2.17 =2 3 4 2.18 F= R mv 2 2.19 Q= g 2 H 2.5 2.20 F=C d L 2 2 2 2.21 m p A 44 . 2 m p B 44 . 4 2.22 Q 1 = 1 ( 2 Q cos) ) cos 1 ( 2 2 Q Q 2.23 R=2145KN =54 68 2.24 m=3.12kg 2.25 T 24 34 T 23 10 3. 3.1 d Re 3.2 R e =198019.82000 3.3 R e =64554500 3.4 cm 0096 . 0 0 m m 44 . 4 44 . 4 ) ) Q 4 3.5 3 2 0 u v v u x h y m 577 . 0 3.6 Q 3 min 1654 . 0 m /s 2 0 / 24 . 33 m N 3.7 Q=5000cm 3 /s Re=19450 2 . 0 0 027 . 0 Q 20000cm 3 /s Re=78200 775 . 0 0 026 . 0 Q 200000cm 3 /s Re=780000 1 . 7 0 023 . 0 l 100m Q 5000 cm 3 /s h f =0.006m Q=2000 cm 3 /s h f =0.09m Q 200000 cm 3 /s h f =7.85m 3.8 0.042 3.9 n=0.011 3.10 =0.29 3.11 Q=0.004m 3 /s 3.12 h=0.158m 3.13 Z=11.1m 3.14 =24.7 4 4.1 n=0.012 Q=6.51 m 3 /s n=0.013 Q=6.7m 3 /s n=0.014 Q=6.3 m 3 /s 4.2 n=0.0125 Q=0.68 m 3 /s n=0.011 Q=0.74 m 3 /s n=0.014 Q=0.62 m 3 /s 4.3 Q max =0.0268 m 3 /s Z=0.82m 4.4 n=0.011 H=7.61 m n=0.012 H=7.0 m 4.5 H t =30.331m 4.6 n 0.012 Q=0.5 m 3 /s h max v =5.1m 4.7 n 0.0125 H A 21.5m 4.8 Q 1 =29.3L/s Q 2 =30.7L/s =135.21m =0.006m Q=2000 cm 4 4 5 4.9 H=0.9m 4.10 Q 2 =0.17 m 3 /s Q 3 =0.468 m 3 /s 4.11 Q 1 =0.7 m 3 /s Q 2 =0.37 m 3 /s Q 3 =0.33 m 3 /s 4.12 H 1 =2.8m 4.13 Q=0.0105 m 3 /s P B =10.57KN/m 2 4.14 Q 1 =0.157 Q 2 5 5.1 V=1.32m/s Q=0.65 m 3 /s 5.2 Q=20.3 m 3 /s 5.3 Q=241.3 m 3 /s 5.4 h=2.34m 5.5 h=1.25m 5.6 b=3.2m 5.7 b=71m V=1.5 m/s V 1.41 m/s 5.8 n=0.011 i=0.0026 =51.76m n=0.012 i=0.0031 n=0.013 i=0.0036 n=0.014 i=0.0042 5.9 i=1/3000 V=1.63m/s h k 2 6.3 h k =1.56m V k =3.34m/s V w =5.86m/s h k h 0 V w V 6.5 i K =0.00344 i 6.7 L C 0 b 0 b 2 L C 0 C 2 C 0 b 2 L C 0 b 2 b 0 b 2 6.8 L 6.9 h 0 =0.96m h K =0.61m h 0 h K a 1 0.971.50 h, s 6.10 1 1 C 1 6.11 S=3497.9m 6.12 S =129.462m 6.13 b=8m h=1.37m b=6m h=0.82m s 49.71 b=4m h=1.07m s 50.18 7 7.1 h 1 =0.301m 7.2 Fr 1 =9.049.0 h 2 =6.15m 7.3 E j =14.23m P j =6972.7Kw E jj =0.40m E=14.63m K j =37.5m 7.4 L j =6.73m =106 0 h 2 =1.7m 7.5 h 01 =0.71m h 02 =1.55m h K =1.18m h 01 h K h =2.32mh =2.32m. =2.32m. =25.8m L =25.8m L 8 10.5 A H 1 =75.2m H A 2 =67m 10.6 t=0.71s v=0 dt dv =1.96 m/s 2 11 11.1 t A =0.68h t B =0.768h 11.2 1 2800m, S 4000m, 7 1 2 3 4 5 6 7 8 2 504.8 498.2 491.2484.2477.5470.7464.2 457.7 Q 2100 1970 1590 1242 1000 840 760 735 12 12.1 x 2 y 2 =C 2 12.5 P=P 0 ) ( 4 9 2 2 y x 14 14.1 u = u =- 4= +c 14.4 AB =2 m 3 /s.m 15 15.1 q=0.868cm 3 /s.m 15.2 h 0 /m 3 4 5 6 Q/m 3 /s 0.000282 0.000255 0.000218 0.000168 15.3 1.53m 15.4 q=2.36 10 -5 m 3 /s.m 15.5 1 2 3 4 5 6 h N /m 12 13.5 16.0 13.0 13.0 12.0 14 +c +c /s.m 9 hf/m 0 1.0 4.0 6.0 9.0 10.0 m r P / 12 12.5 12.0 7.0 4.0 2.0 Q=4 10 -5 m 3 /s.m 18 18.2 Q p =322m 3 /s H p =3.0m V p =15m/s 18.3 v =5.1 Q =3447 t =5.1 Q M =0.0934 m 3 /s 0.10m 3 /s 18.4 q M =6.39L/s.m 18.3 v = 5 . 0 h 5 . 1 h L Q 5 . 0 ) ( h v c
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