泵站进、出水流道优化水力设计方法-研究

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1、Iv扬州大学硕士学位论文basisoftheMicrosoftAccessdatabaseplatform，usedtheVisualBasiclanguage，thedatabasemanagementsystemsthathydraulicdesignofthepumpsysteminletandoutletconduitwasdeveloped；(5)TheCharacteristicsofElbowinletconduitandsiphonoutletconduitgeometricfigurewereanalyzedandth

2、eparametricmodeloftheelbowinletconduitandsiphonoutletconduitwereestablished；(6)Usedofthetheorieandmethodofnumericalsimulationofturbulentflowtheory,andexplainedtheareaofnumericalcalculationandtheboundaryconditionsoftheinletandoutletconduitandpumpsystem；(7)Thispaperintrodu

3、cedthemodeltestmethodsandtestequipmentontheinletandoutletconduitanalysis，settledtheproblemabouthowtoobserveflowpatternandmeasurethehydraulicloss；(8)Theoptimumhydraulicdesignofthepumpsystemwascomparativelydeepstudiedinthispaperbythehelpoftheproposedmethod．Theoptimalsoluti

4、onoftheinletandoutletconduitwasdetermined，themodeltestfortheoptimalsolutionoftheinlet，outletconduitandpumpsystemWascompleted，thenthemodeltestresultwascomparedandanalyzed．ByapplyingthemodemcomputertechnologyandCFDnumericalcomputationaltheory,Thehydraulicdesignmethodsofthe

5、conduitisimprovedandoptimized，the3Doptimumhydraulicdesignideaswasmadeclear,andthepapersolvedthekeyissueswhichrequiredintheoptimizationprocess．Analyzedtheoreticallythemethodisreasonable，andfromengineeringapplicationsthemethodisvalid．The3Doptimumhydraulicdesigntheoryofthei

6、nletandoutletconduitofthisarticlecanbeusedtoguidethelargeandmedium—sizedpumpingstationtodesigntheinletandoutletconduit．TheKeywords：theinletandoutletconduitOfpumpingstation，Optimumhydraulicdesign，Analysis，Optimizationproblem，Fineoptimization，Databasemanagementsystem，Param

7、etricmodel，NumericalSimulation，Modeltest王刚：泵站进、出水流道优化水力设计方法研究V符号说明符号物理含义‘刁效率●_——缈平均角速度——速度加权平均角度p——“口平均轴向速度“口，各单元轴向速度“，，各单元横向速度圪流速分布均匀度，”单元个数孝水头损失系数h水力损失—-V平均流速p流体密度—●“速度向量，时间F单位流体体积力f粘性应力丁温度∥动力粘性系数K传热系数k湍动能VI扬州大学硕士学位论文符号物理含义s湍动耗散率{ur湍动黏度Gk应力生成项吼k方程湍流Prandtl数Oe占方程湍流Prand

8、tl数p压强v流速Vwall壁面速度旯模型比Q流量d管道内径H测压管水头万不确定度r半径一平均半径饧R进出水流道进口半径，2转速△办水力损失B出水池宽度D叶轮直径王刚：泵站进、出水流道优化水力设计方法研究目