翼型多目标气动优化设计方法

100871modeFRONTIERCFDNACA0012N-SMOGAMOSA182NSAbstract:Thecombinationoftheoptimizationsoftware,modeFRONTIER,andthecommercialCFDsoftwareisusedtooptimizetheaerodynamicfunctionsoftheairfoil,NACA0012.TheNSequationsareadoptedforcalculatingtheairfoilaerodynamicproperties(Cl,Cdandetc).Twokindsofoptimizationalgorithm,theMulti-ObjectGeneticAlgorithm(MOGA)andtheMulti-ObjectSimulatedAnnealing(MOSA),areusedintheoptimizationprocessrespectively.Theoptimizedairfoilsshowremarkableimprovementofitsaerodynamicfunctions(Theratiooflifttodragincreasesupto282%)relativetoitsoriginalone.KeywordsAerodynamicOptimizationDesign,NSEquation,GeneticAlgorithm,SimulatedAnnealing[8][9][26][7][1]00()()()niiiyxyxfxα==+∑[1]23gambit4FluentClCdCeff516modelFRONTIERln(0.5)ln()(,,)sinnmifxmnxπ⎛⎞=⎜⎟⎜⎟⎝⎠…[3][45][6]ni1objwiiF==∑*[1011][1]HicksRandHenneP.WingDesignbyNumericalOptimization[J].Aircraft,July1978,Vol.15,No.7:407-413.[2].[J].2002vol.23,No.4:330-333.[3]HollandJH.Geneticalgorithms[J].ScientificAmerican,1992,267(1):44-50.[4]KirkpatrickS,GelattCD,VecchiMP.OptimizationbySimulatedAnnealing[J].Science,1983,220,No.4598:671-680.,[5]MetropolisN,RosenbluthA,RosenbluthR,TellerA,TellerE.Equationofstatecalculationsbyfastcomputingmachines[J].JournalofChemicalPhysics.,1953,21:1087-1092.[6]ESTECOsrl.modeFRONTIERUserManual[DK].[7]WangJiangfengWuYizhao.Comparisonofconvergencebetweenevolutionaryalgorithmsanddeterministicalgorithmsforoptimalcontrolproblem[J].ChineseJournalofComputationalMechanics,2004,Vol21,No3:349-355.[8].[J].E200411:999-1006.[9].[J].2005372157-163[10]AndersonJD.ComputationalFluiddynamicsTheBasicswithApplications[M].2002.[11]SV.[M].1984.