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1、DOI:10.16076/j.cnki.cjhd.2016.05.006*基于重疊網(wǎng)格技術(shù)數(shù)值模擬船舶純搖首運動王建華,萬德成(上海交通大學(xué)船舶海洋與建筑工程學(xué)院海洋工程國家重點實驗室高新船舶與深海開發(fā)裝備協(xié)同創(chuàng)新中心,上海200240,Email:sjtuwjh@gmail.com)摘要:該文采用基于非定常RANS方程的黏性數(shù)值模擬方法,對標(biāo)準(zhǔn)船模DTMB5512裸船體在平面運動機(jī)構(gòu)(PMM)控制作用下的純搖首運動進(jìn)行了數(shù)值模擬。文中數(shù)值計算采用基于開源CFD工具包OpenFOAM和重疊網(wǎng)格技術(shù)開發(fā)的多功能水動力學(xué)求解器naoe-FOAM-SJTU。根據(jù)SIMMAN
2、2014提供的標(biāo)準(zhǔn)算例,對同一運動頻率下,在Fn=0.28工況下的3種不同運動幅值的純搖首運動進(jìn)行了數(shù)值計算,得出了船舶不同工況下的阻力、側(cè)向力和轉(zhuǎn)首力矩的歷時曲線。并且根據(jù)操縱性數(shù)學(xué)模型(MMG)推導(dǎo)出相應(yīng)的水動力導(dǎo)數(shù)值,所有計算結(jié)果同模型試驗數(shù)據(jù)吻合較好,驗證了采用當(dāng)前處理方法數(shù)值求解純搖首運動的可靠性。關(guān)鍵詞:重疊網(wǎng)格;平面運動機(jī)構(gòu)(PMM);純搖首;naoe-FOAM-SJTU求解器中圖分類號:U661.1文獻(xiàn)標(biāo)識碼:ANumericalsimulationofpureyawmotionusingdynamicoversetgridtechnologyWANG
3、Jian-hua,WANDe-cheng(StateKeyLaboratoryofOceanEngineering,SchoolofNavalArchitecture,OceanandCivilEngineering,ShanghaiJiaoTongUniversity,CollaborativeInnovationCenterforAdvancedShipandDeep-SeaExploration,Shanghai200240,China)Abstract:ThispaperpresentstheURANSsimulationandanalysisofthehyd
4、rodynamiccharacteristicsforthesurfacecombatantModel5512barehullunderdynamicplanarmotionmechanism(PMM).Allthenumericalcomputationsarecarriedoutbyin-housesolvernaoe-FOAM-SJTUcoupledwithdynamicoversetgridmethod.Inthepresentwork,theshipmodelis*收稿日期:2015-10-30(2016-08-31修改稿)基金項目:國家自然科學(xué)基金項目(5
5、1379125,51490675,11432009,51579145,11272120)、長江學(xué)者獎勵計劃(T2014099)和上海高校東方學(xué)者特聘教授崗位跟蹤計劃(2013022)作者簡介:王建華(1988-),男,河北邢臺人,博士研究生.通信作者:萬德成,Email:dcwan@sjtu.edu.cnReceived:October30,2015(RevisedAugust31,2016)Projectsupportedbyfoundations:SupportedbytheNationalNaturalScienceFoundationofChina(51379
6、125,51490675,11432009,51579145,11272120),theChangJiangScholarsProgram(T2014099)andtheProgramforProfessorofSpecialAppointment(EasternScholar)atShanghaiInstitutionsofHigherLearning(2013022)Biography:WANGJian-hua(1988–),Male,Ph.D.Candidate.Correspondingauthor:WANDe-cheng,Email:dcwan@sjtu.e
7、du.cn568水動力學(xué)研究與進(jìn)展A輯2016年第5期subjectedtopureyawmotionatFroudenumber0.28.Thehydrodynamicforcesandmomentsactingontheshipareobtainedforfurtheranalysis.AccordingtotheMMGmathematicalmodel,thehydrodynamicderivativesareobtained.Alltheabovenumericalresultshavebeencomparedtotheexperimenta