材料加工过程数值模拟基础

《材料加工过程数值模拟基础》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、材料加工过程数值模拟基础FundamentalsofNumericalSimulationforMaterialsProcessing内容简介动量传输、热量传输及质量传输的有限差分法数值模拟理论基础和微观组织模拟等内容，包括有限差分法基本理论、基本公式的推导、基本求解方法。（18学时）弹塑性及刚塑性有限元法数值模拟理论基础和微观组织模拟等内容，包括有限元法的基本理论、基本公式的推导、基本求解方法等。（18学时）主要参考教材《NumericalHeatTransferandFluidFlow》,S

2、uhasV.Patankar,HemispherePublishingCorporation,1980《传热和流体流动的数值方法》，[美]S.V.帕坦卡著，郭宽良译，安徽科学技术出版社，1984年《材料热加工过程的数值模拟》，张凯锋等编著，哈工大出版社，2000年《铸造工程的模拟仿真与质量控制》，柳百成等编著，机械工业出版社，20011.INTRODUCTION1.1PurposeofthiscourseThiscourseisprimarilyaimedatdevelopingageneral

3、methodofpredictionforheatandmasstransfer,fluidflow,metalformingandrelatedprocesses.Aswewillshortlysee,amongthedifferentmethodsofprediction,thenumericalsolutionoffersgreatpromise.Inthiscourse,wewillconstructnumericalmethodsforpredictingtheprocessesofi

4、nterest1.2Methodofprediction1.2.1ExperimentalInvestigationthemostreliableexpensivesometimesimpossiblenotfreefromerrors1.2.2TheoreticalCalculationAdvantages:LowcostSpeedCompleteinformationAbilitytosimulaterealisticconditionsAbilitytosimulateidealcondi

5、tionsDisadvantagesProblemswithanadequatemathematicaldescriptionProblemswithoutanadequatemathematicaldescriptionSometimesexperimentalbackupishighlydesirable1.2.3ChoiceofPredictionMethodComputationcannotexcludeexperimentExperimentleadsandcomputationfol

6、lowsComputedresultsneedexperimentalvalidationAjudiciouscombinationofcomputationandexperimentisoptimal2.MathematicalDescriptionofPhysicalPhenomena2.1GoverningDifferentialEquations2.1.1MeaningofaDifferentialEquationTheindividualdifferentialequationsth

7、atwewillencounterexpressacertainconservationprincipleonaunit-volumebasis.2.1.2ConversationofaChemicalSpecies2.1.3TheEnergyEquationTheenergyequationforaunsteadyheattransfer:Theenergyequationforasteadyheattransfer:2.1.4AMomentumEquation2.1.5TheGeneralD

8、ifferentialEquation2.1.6TheContinuityEquation2.1.7TheVolumeofFluidEquation3.DiscretizationMethods3.1TheNatureofNumericalMethods3.1.1TheTaskSupposethatwewishtoobtainthetemperaturefieldinthedomainshowninFig.1.1.Itmaybesufficienttoknowthevaluesoftempera