水力学实验报告思考题答案(1)

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1、水力学实验报告实验一流体静力学实验实验二不可压缩流体恒定流能量方程（伯诺利方程）实验实验三不可压缩流体恒定流动量定律实验实验四毕托管测速实验实验五雷诺实验实验六文丘里流量计实验实验七沿程水头损失实验实验八局部阻力实验实验一流体静力学实验实验原理在重力作用下不可压缩流体静力学基本方程或(1.1)式中：z被测点在基准面的相对位置高度；p被测点的静水压强，用相对压强表示，以下同；p0水箱中液面的表面压强；γ液体容重；loanmanagement(post)review:1,approvalcriteriahavebeenimplemented;2,thecontract

2、iscorrect;3,inlinewiththecontract,payment;4,noothermajorcasesagainstloansecurity;、Reviewedby:dateofrecordform9:qilubankborrowingbysingleyearsofmaximumamountamaximumno-loanborrowers:borrowers:...Borrowernamenumber,lineofcreditexpirydateyearmonthdaytoyearmonthdaymaximumnumberofyearsinth

3、eloancontractarethetoplineopened,theborrowedandrequestedyourbankopenedcreditlinesabove,isherebyrequested.Borrowersignature:dateagreedtoopencreditlines.CustomerManagersignature:dateagreedtoopencreditlines.Loanreviewsignature:datelinecancellation-Ididnotusetheloanamount,yourbankcreditli

4、nestobecancelled.-Creditloanprincipalrepayment,yourbankcreditlinestobecancelled.Borrowersignature:date-unusedcreditlines,agreetowriteoffloans.-Creditloanprincipalrepayment,agreetowriteoffloans.CustomerManagersignature:datecase,agreetowriteoffloans.Loanreviewsignature:dateofrecordform1

5、6:qiluselfcreditforcreditcardcancellationapplicationformnameofborrowerIDnumberandcreditlimitexpirationdateyearmonthdaytoyearmonthdayyearcontractnumberself-servicecard-Idonotusecredit,yourbankcreditlinestobecancelled.-Creditloanprincipalrepayment,yourbankcreditlinestobecancelled.Borrow

6、ersignature:date-unusedcreditlines,agreetowriteoffloans.-Creditloanprincipalrepayment,agreetowriteoffloans.CustomerManagersignature:h被测点的液体深度。另对装有水油（图1.2及图1.3）U型测管，应用等压面可得油的比重S0有下列关系：(1.2)据此可用仪器（不用另外尺）直接测得S0。实验分析与讨论1.同一静止液体内的测管水头线是根什么线？测压管水头指，即静水力学实验仪显示的测管液面至基准面的垂直高度。测压管水头线指测压管液面的连线。实

7、验直接观察可知，同一静止液面的测压管水头线是一根水平线。2.当PB<0时，试根据记录数据，确定水箱内的真空区域。，相应容器的真空区域包括以下三部分：(1)过测压管2液面作一水平面，由等压面原理知，相对测压管2及水箱内的水体而言，该水平面为等压面，均为大气压强，故该平面以上由密封的水、气所占的空间区域，均为真空区域。(2)同理，过箱顶小水杯的液面作一水平面，测压管4中，该平面以上的水体亦为真空区域。(3)在测压管5中，自水面向下深度某一段水柱亦为真空区。这段高度与测压管2液面低于水箱液面的高度相等，亦与测压管4液面高于小水杯液面高度相等。3.若再备一根直尺，试采用另

8、外最简便的