河流动力学大作业

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1、Problem1CalculatethevariationinHandτb=ρCfU2inxupstreamofx1(heresetequalto0)untilHiswithin1percentofHn.AWORKEDEXAMPLE(constantCz):S=0.00025Cz=22qw=5.7m2/sD=0.6mmR=1.65H1=30mHn=3.01mHc=1.49mSolution:whereprogrammainfs=0.00025fCz=22fqw=5.7fg=9.81fdx=300036fH1=30fdH=3.01fH

2、=fH150if((fH-fdH)>0.01*fdH)thenfsH1=fCz**2.0*fqw**2.0/(fg*fH1**3.0)fno=1-fqW**2.0/(fg*fH1**3.0)ffH1=(fs-fsH1)/fnofH=fH1+fdx*ffH1print*,fHpausefdh=fHgoto50endifendHn+=2.928926543，Hn-=3.739186042，Cf+=0.00143480257120,Cf-=0.0032283057851Sheet1xSfFr2H+Uτb01.7599854848E-070

3、.00012266394835300.190.05179637281940001.9482861183E-070.000135787749329.0005814020.196547783680.05542790299480002.1644210827E-070.0001508514917828.0012250160.20356252260.059454919373120002.4137258667E-070.00016822703827.001940040.211095943160.06393695078436160002.7028

4、107528E-070.0001883750982326.0027374380.219207689710.068945149262200003.0399304022E-070.0002118709893125.0036303550.227966895970.074565119457240003.435480976E-070.000239439282124.0046346690.237454144940.080900583892280003.9026764405E-070.0002720009371923.0057696940.247

5、763933820.088078177948320004.4584799723E-070.0003107382201522.0070591150.259007801560.096253789698360005.1249037876E-070.0003571852943821.0085322260.271318335740.10562103896400005.9308493791E-070.0004133564783320.0102256070.284854359560.11642275907440006.9147539012E-07

6、0.000481930687919.01218540.299807722250.12896675609480008.1284614047E-070.0005665212460618.0144704730.316412298030.14364775933520009.6429928358E-070.0006720780286817.0171568580.334956070960.16097849155560001.1557325066E-060.0008054993277816.0203441190.35579760070.18163

7、443048600001.4012055507E-060.0009765842206115.0241646270.379388814050.20651955956640001.7211214664E-060.001199552817214.0287973890.406307101160.23686504312680002.1458077305E-060.001495542155913.034489150.437301372870.27438086937720002.7215832142E-060.00189683463712.041

8、5874550.473359515220.32149510826760003.5214049984E-060.002454278427711.0505940370.515809374680.38174258352800004.6643