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1、第37卷第9期2015年9月艦船科學(xué)技術(shù)SHIPSCIENCEANDTECHNOLOGYV01.37,No.9Sep.,2015破損船操縱運(yùn)動(dòng)水動(dòng)力及艙室流場(chǎng)的數(shù)值研究邱云明1,陸冬青1,郝寨柳2(1.鎮(zhèn)江船艇學(xué)院,江蘇鎮(zhèn)江212003;2.武漢理工大學(xué)交通學(xué)院,湖北武漢430063)摘要:目前,對(duì)破損船操縱水動(dòng)力研究很少。為計(jì)算破損船操縱水動(dòng)力及其破艙室粘性流場(chǎng)特征,本文基于RANS方程,選取SSTk一∞湍流模式,對(duì)某新型油船破艙進(jìn)水后的斜航操縱運(yùn)動(dòng)進(jìn)行數(shù)值模擬。計(jì)算出破損船在不同斜航角時(shí)的總阻力、橫向壓力、轉(zhuǎn)首力矩的系數(shù),探究其操縱水動(dòng)力變化情況。模擬破艙室內(nèi)的流場(chǎng)情況,
2、分析破艙室水的運(yùn)動(dòng)特點(diǎn)。最后將破損船數(shù)值結(jié)果與試驗(yàn)結(jié)果進(jìn)行比較,研究表明計(jì)算模型可行,能較好地計(jì)算破損船操縱水動(dòng)力及其流場(chǎng)情況。該研究成果可為今后破艙操縱性規(guī)范的制定和船舶優(yōu)化設(shè)計(jì)提供理論參考。關(guān)鍵詞:破損船;CFD;數(shù)值模擬;操縱水動(dòng)力;粘性流場(chǎng)中圖分類號(hào):U661.33文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1672—7649(2015)09—005l一05doi:10.3404/j.issn.1672—7649.2015.09.011Numericalsimulationofmaneuveringhydrodynamicforcesofdamagedshipandviscousflow
3、fieldsindamagedcabinQIUYun—min91,LUDong—qin91,HAOZhai.1iu2(1.ZhenjiangWatercraftCollege,Zhenjiang212003,China;2.SchoolofTransportation,WuhanUniversityofTechnology,Wuhan430063,China)Abstract:Thestudyofhydrodynamicforcesofdamagedshipisoneofthemostimportantsubjects,buttherearefewresearchesinth
4、estudyofmaneuverabilityhydrodynamicofdamagedship.Inordertocalculatethemaneuverabilityhydrodynamicandtheflowfieldsindamagedcabin,RANSequationsareapplied,andSSTk-wturbulencemodelischosentocalculatethehydrodynamicforcecoefficientsofonenewoiltankerindamagedconditions.Thetotalresistancecoefficie
5、nt,transverseforcecoefficientandbowturningmomentcoefficientarecalculatedduringtheoiltankershipnavigatingindifferentyaweddegrees,andthechangesofthehydrodynamiccharacteristicisanalyzed.Theviscousflowfieldsinthedamagedcabinaresimulated.Thenthehydrauliccharacteristicinthedamagedcabinisanalyzedb
6、asedontheresultsofnumericalcalculation.Theresultsofnumericalcalculationarealsocomparedwithexperimentresultsindamagedconditions.Thenumericalresultsarealmostagreedwithexperimentresults.Theresearch,whichisinnovative,indicatesthatcalculationmodelappliedisreasonableandcredible,andthenumericalres
7、ultsareofgreatreferencefordamagedmaneuverabilitycriteriaandshipoptimaldesigninthefuture.Keywords:damagedship;computationalfluiddynamics(CFD);numericalsimulation;maneuveringhydrodynamicforces;viscousflowfield0引言國(guó)內(nèi)外專家、學(xué)者十分重視破損船水動(dòng)力性能的研究,20世紀(jì)80年代較多地對(duì)船舶的破艙穩(wěn)性進(jìn)