fluent噪声培训资料(中)

fluent 噪声

Tutorial:BroadbandNoiseModeling

Purpose

Thepurposeofthistutorialistoprovideguidelinesandrecommendationsforthebasicsetupandsolutionprocedureforsolvinganacoustics eldgeneratedfromasedancarusingthebroadbandnoisemodel.Theproblemisinitiallysolvedforsteadystate,andthenthebroadbandacousticmodelisincludedinthecalculationtoperformpostprocessing.Prerequisites

Thistutorialassumesthatyouarefamiliarwiththeuserinterface,basicsetupandsolutionproceduresinFLUENT.Thistutorialdoesnotcovermechanicsofusingthebroadbandnoisemodel,butfocusesonsettinguptheproblemforasedancarandperformingpostprocessing.Italsoassumesthatyouhaveabasicunderstandingofaeroacousticphysics.

IfyouhavenotusedFLUENTbefore,itwouldbehelpfulto rstreviewFLUENT6.2User’sGuideandFLUENT6.2TutorialGuide.

ProblemDescription

TheprobleminvolvesasedancarmodelasshowninFigure1.Thecaristravelingat70milesperhour.Youwillstudyonlytheacoustics eldgeneratedbythemotionofthecartohighlightthenoisesourceonthesedanbody,thereforethemirrorsandthewheelsofthecarare

fluent噪声培训资料(中)

ignored.

Figure1:TheSedanCar

cFluentInc.March18,2005 1

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