水力学第四版课后答案

..第一章绪论精品文档放心下载[]VV1122又998.23kg/1m3971.83kg/m32感谢阅读V2V12.5679m312VV2V10.0679m3感谢阅读[]fxfy；fzgfxf；fgg0yz第二章流体静力学U谢谢阅读[]p0paghpep0pagh10009.8071.514.7kPa.学习帮手...AA精品文档放心下载[]pp0p0Ap表0.5gp1.5gg490010009.8Ap4900Pa表pp4900980000a93100PaABAAAh1h2h2h1hBBB.学习帮手...Aρgh1ρgh1ρgh12BρghAρg(h)21ρg(h)21BABρgh.学习帮手....学习帮手...精品文档放心下载角oA精品文档放心下载.学习帮手...[]PAA10009.8221pgh39200Ncc1123yJ2Dyc

c2.946m2

yAsin4521csin45hl22ycA1.828msin22Tlcos45y)P(yADTP(yy)(2.94630.99kNDAlcos2cosHH谢谢阅读12Ah1B°h2[]P11h131b9.807312sin2sin1.学习帮手...h'h3'11.414m13sin3sinP21h122b9.82127.74kN2sin2sin2h'2h223sin3sinPPP1262.4127.7434.67kN对BPh'h''PPh1122D62.411.41427.740.94334.67h'D精品文档放心下载h'D1.79mUU感谢阅读ωω。谢谢阅读max[解]感谢阅读2r22gzCIzhzIz2h，以r1a,rb22b2a2ab2b2a2a>b.学习帮手...．如图，600，上部油深h，下部水深h2.0m3，谢谢阅读12ab[]Pb1h1hhh＋hh1222sin6002sin600sin600油1水2油1精品文档放心下载46.2kN1hPh4.62kN112油1sin600

h'2.69m11hP23.09kN2

2h2sin60水02h'20.77m

hPh23油18.48kN1sin600

h1.155m3对B点取矩：PPPhhh''''112233Dh'1.115mDh3sin600Dh'D=30径R.学习帮手...ARαhBPxo329.807Rsin2sin2gb2222.066））Pz11RVggRsinRcos212229.8072sin30ocos30o22127.996））PP2arctanPzPxxP222z）19.92oAθPB.学习帮手...P23.470kN，19.92。谢谢阅读，圆心角精品文档放心下载[]FpxcAxgh3.03hb9.8144.145kN22hV[h(sin453[3(sin451.1629m3h)1h2]h)(228sin45132]3()228sin45Fpz9.811.162911.41kNF2F2Fppxpz44.1452245.595kNarctanFFpzarctan11.4144.14514.5px.学习帮手...第三章水动力学基础(r3-1：uumaxr0)]2ruQ精品文档放心下载0。r[]QudA()2rdr0umaxrA00感谢阅读2ur2max020.150.0322.12104m3/svQr202ur2max0r20umax/s2感谢阅读uuQ）精品文档放心下载[]pup2AA

g2g

gupp212.6hpuA(AA2gggp2g2/sp.学习帮手...Qd2v440.220.843.850.102m3/s3-4．图示管路由两根不同直径的管子与一渐变连接管组成。已知d谢谢阅读，AdApBpB谢谢阅读BABvBh谢谢阅读。Bw[]4d2vAA4dv2BBvAd2Bd2AvB400()14m/s2200zApvpv22zhAAABBBg2gg2gBwzzz1.0BAhwABpvpv22zABABg2g42220谢谢阅读3-5d精品文档放心下载1d精品文档放心下载2数hQp.学习帮手...[]22d213.140.2g29.8070.139

44K0.036d0.23.873

(1)41()41感谢阅读d12qV(K0.950.036(0.15p0.850.0513m3/s51.3L/s精品文档放心下载3-10水箱中的水从一扩散短管流到大气中，直径d=100mm，该处绝对压强精品文档放心下载1p=0.5atmd=150mm，水头损失忽略不计，求水头H。（H=1.27m）精品文档放心下载12解：.学习帮手...dd精品文档放心下载12谢谢阅读。[]qVd2d4q42.51032vvv/s12V44d3.140.051212214q42.53v2/sVd23.140.02522pvv2222ppp(pp)vv011021aa2221g2gg2gg2gpvpvp5.0931.27398072222p2a10.2398mH221g2gg2g10009.807pahpagp22O2A感谢阅读精品文档放心下载.学习帮手...ρ为3。[]p2p水ghap2pa水ghppv2ppv2000aa22水gg2ggg2g气气气气2gv229.80710000.15h

hv47.757m/s2水水1.29气气2g23.140.2247.757qd2Vv1.5m3/s44260º感谢阅读径，喷射流量=33.4L/s，，试求射流沿平板的分流流量QQ精品文档放心下载12[]vvv012v0410368.076m/sd3.140.02522x.学习帮手...0QQ(v)Qvcosv11220QQQcos12QQQ22Q8.35L/s2QQQ25.05L/s感谢阅读12精品文档放心下载yF0Q(vsin60)0FQvsin601969.12N0感谢阅读感谢阅读QL/s谢谢阅读1）精品文档放心下载[]xyx精品文档放心下载FqvV22cosqVv0y0qsinqvvvqV22V11V22qvsin0.5V110qvV220sinqvV11p12Cv2.学习帮手...pvv=v精品文档放心下载a012F103cos100036103精品文档放心下载F456.5N

F456.5Ndd谢谢阅读12q3感谢阅读V[]qVdd2v2v2v1124414q41.84q41.8V1.02m/s；v2.29m/sVd23.141.52d23.141.02212pv2pv2

011022

g2gg2gp2p1v2222v1.022.29103389.898kPa1222FFFp2d2pFp114qV2(v2v)1d2q24V(v2v)13.141.523.141.0210F389.8981.8(2.291.02)感谢阅读3344F692721.18306225.172286感谢阅读F3-3-1945感谢阅读0d1d600mm，2q300mm，V强0.425/s，压.学习帮手...p1140kPa，[]v

和vA

B4q40.4254Q40.425

vm/s；v16.02m/sVπdπ0.6πdπ0..32222

212p2v2v20.115m；1.849m122g2gp2p1v2v2g1409.81(0.1151.849)122.98kN/m122g2g2R精品文档放心下载为R和R，x和yXYp24d22cosFyQ(v2cosp14d2p2p124d22cosFxQ(v2cosv)1FxFyp41dcosq(vV2p24v2coskNd2p2p12cos)=32.27kNvd224221cosqVFF2F2xytan1FyFx0FFF。感谢阅读.学习帮手...3-20，在河道上修筑一大坝，谢谢阅读q3hh感谢阅读12[]qvvBhBhV1122qv2.