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《基于openfoam的船舶與液艙流體晃蕩在波浪中時(shí)域耦合運(yùn)動(dòng)的數(shù)值模擬》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在教育資源-天天文庫(kù)。
1、基于OpenFOAM的船舶與液艙流體晃蕩在波浪中時(shí)域耦合運(yùn)動(dòng)的數(shù)值模擬第16卷第7期船舶力學(xué)Vol,】6No.72012年7月JournalofShipMechanicsJul.2012文章編號(hào):1007-7294(2012)07—07,O—09基于OpenFOAM的船舶與液艙流體晃蕩在波浪中時(shí)域耦合運(yùn)動(dòng)的數(shù)值模擬李裕龍1,朱仁傳1,繆國(guó)平1,范菊1,陸志妹2(I上海交通大學(xué)船舶海洋與建筑工程學(xué)院,海洋工程國(guó)家重點(diǎn)試驗(yàn)室.上海200240;2中國(guó)船舶及海洋工程設(shè)計(jì)研究院,上海200011)摘要:波浪中載液船舶運(yùn)動(dòng)激勵(lì)艙內(nèi)液體的晃蕩.艙內(nèi)液體晃蕩產(chǎn)生
2、的沖擊力同時(shí)作用在艙壁上,進(jìn)而影響船舶的運(yùn)動(dòng)姿態(tài)。波浪中船體水動(dòng)力和時(shí)延函數(shù)是在勢(shì)流理論范疇下采用切片法和脈沖響應(yīng)函數(shù)方法計(jì)算獲得的,液艙內(nèi)液體非線性晃蕩是基于粘性流理論實(shí)時(shí)計(jì)算模擬,兩者耦合建立了波浪中載液船舶與液艙流體晃蕩耦合的運(yùn)動(dòng)方程。論文基于開(kāi)源CFD開(kāi)發(fā)平臺(tái)OpenFOAM,自主開(kāi)發(fā)實(shí)現(xiàn)了船體運(yùn)動(dòng)與液艙晃蕩的耦合計(jì)算程序。并進(jìn)行了相應(yīng)的數(shù)值模擬計(jì)算和驗(yàn)證工作。該方法完整地考慮r波浪、船體和液艙晃蕩之間的耦合作用。并結(jié)合船體內(nèi)外流場(chǎng)特點(diǎn)分別采用了勢(shì)流和粘性流理論,具有較高的計(jì)算效率。通過(guò)數(shù)值模擬計(jì)算和模型實(shí)驗(yàn)研究表明,數(shù)值—————————
3、——————————————————————————————————————模擬計(jì)算能夠清晰顯現(xiàn)出液艙晃蕩對(duì)船體全局運(yùn)動(dòng)影響。船體運(yùn)動(dòng)計(jì)算結(jié)果與模型實(shí)驗(yàn)結(jié)果吻合良好。關(guān)鍵詞:OpeaFOAM;渡艙晃蕩;脈沖響應(yīng)函效;運(yùn)動(dòng)藕合;時(shí)域模擬中圍分類號(hào):U661.3文獻(xiàn)標(biāo)識(shí)碼:ASimulationofshipmotionscoupledwithtanksloshingintimedomainbasedonOpenFOAMLI2Yu-long1,ZHURen-chuanl,MIAOGuo-ping1,FANJul,LUZhi-mei(ITheStateKe
4、yLaboratoryofOceanEngineering,SchoolofNavalArchitecture,OceanandCivilEngineering,ShM一1aiJiaoTongUniversity,Sh,ghai200240。China;2MarineDesignandResearchInstituteofChiim,ShangIlai200011,Chirta)Abstract:Tanksloshinginshipcargoisexcitedbyshipmotions,inthemeantimethesloshingflowind
5、u———————————————————————————————————————————————cesimpactloadontankwall,thenaffectstheshipmotion.WaveforcesactingonshiphuUandtheretardationfunctionaresolvedbyusingstripmethodandanimpulseresponsefunctionmethodbasedonthepotentialtheory,andglobalshipmotionisestablishedcouplingwit
6、hnonlineartanksloshingwhichissimulatedbyviscousflowtheory.BasedontheopensourceCFDdevelopmentplatformOpenFOAM,numericaleal?eulationofshipmotioncoupledwithtanksloshingisachievedandthecorrespondingnumericalsimulationvalidationatecarriedout,Throughthismethod,theinteractionsofwave,
7、shipbodyandtanksloshingcompletelytakenintoconsiderations.Thismethodhasquitehi?。逖啵悖椋濉睿澹妫铮颍椋簦簦幔耄澹螅幔洌觯幔睿簦幔纾澹埃妫穑幔簦澹睢簦椋幔欤妫欤铮鳎簦瑁澹铮颍妫铮颍铮酰簦澹颍妫欤铮鳎妫椋澹欤洌幔睿洌觯椋螅悖铮酰螅妫欤铮鳎簦瑁澹铮颍妫铮颍椋睿螅椋洌澹簦幔睿耄螅欤铮螅瑁椋睿纾颍澹螅穑澹悖簦椋觯澹欤危酰恚澹颍椋悖幔欤螅椋恚酰欤幔簦椋铮睿幔睿洌澹穑澹颍椋恚澹睿?/p>
8、alstudiesindicatethatthenumericalresultsofshipmotioncoupledwi