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内容简介
thisbookpresentsamodernviewpointofvorticitydynamicsastheframeworkforunderstandingandestablishingthefundamentalprinciplesofviscousandunsteadyaerodynamics.itisintendedforthestudentofclassicalaerodynamicsandtheresearcherexploringthefrontiersoffullyunsteadyandnon-streamlinedaerodynamics. thebookbeginswiththevorticity-dynamicformulationofthelowmachnumberviscousflowproblem.physicalaspectsofthevelocityandthevorticityfields,theirinstantaneousrelationship,andthetransportofvorticityinviscousfluidsareexaminedforsteadyandunsteadyflows.mathematicalaspectsofvorticitydynamicsandissuesofinitialandboundaryconditionsfortheviscousflowproblemaretreatedrigorouslythroughclassicalanalyses.evolutionofthevorticityfieldsurroundingandtrailingairfoilsandwingsisdescribed.generalizationsofhelmholtz’vortextheoremsandthelawofbiot-savartarediscussed.atheoremthatrelatestheaerodynamicforcetothevorticitymomentisreviewedandapplicationsofthistheoremaresetforth.interpretationsofthekutta-joukowskitheoremandprandtl’sliftinglinetheorythroughvorticitydynamicsarepresented.wakeintegralmethodsarereviewed.thevirtual-masseffectisshowntobetheseminaleventinunsteadyaerodynamicsandasimpleapproachforevaluatingvirtual-massforcesonthebasisofvorticitydynamicsispresented.
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