基于CFD的船舶不同浪向下运动及增阻数值分析-豆柴文库

您所在位置：网站首页 / 基于CFD的船舶不同浪向下运动及增阻数值分析.docx / 文档详情

在线预览结束，喜欢就下载吧，查找使用更方便

5 金币

下载文档

/ 2

下载提示

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

文本预览

基于CFD的船舶不同浪向下运动及增阻数值分析
Abstract
Inthispaper,wepresentanumericalanalysisofthemotionandresistanceofvariousshipsunderdifferentwavedirectionsusingcomputationalfluiddynamics(CFD).Weanalyzedthehydrodynamicperformanceoftheshipforvariouswaveanglesandcomparedthemwiththeexperimentalresults.Theaimofthisstudyistoinvestigatetheeffectofwaveangleontheresistanceoftheshipanditsmotion.ThesimulationswereconductedusingANSYSFluentsoftwareandtheresultsshowthattheresistanceoftheshipincreasessignificantlyasthewaveangleincreaseswithrespecttotheship'scourse.Thestudyprovidesinsightsthatcanbeusedtoimprovethedesignandoptimizationofshipsindifferentseastates.
Introduction
Themotionandresistanceofshipsinteractingwithwavesisanimportantaspectofshipdesign.Thebehaviorofshipsinwavesaffectstheship’sstability,seakeepingperformanceandfuelefficiency.Manystudieshavebeenconductedonthehydrodynamicperformanceofshipsinwaves,withparticularfocusonthepredictionofaddedresistance.Addedresistanceisdefinedasthedifferencebetweenthetotalresistanceofashipinstillwaterandtheresistanceofthesameshipwhenitissubjectedtowaves.Itisknowntoincreasesignificantlywithwaveheight,speedandwavelength.
Inthisstudy,weinvestigatetheeffectofwaveangleonthemotionandresistanceofshipsusingCFD.ThemotionoftheshipinwavesissimulatedusingReynolds-AveragedNavier-Stokes(RANS)equationswiththeturbulencemodel.Numericalsimulationsprovideavaluabletoolforpredictingthemotionandresistanceofshipsinwaves,andcanbeusedtooptimizethedesignofshipsfordifferentseastates.
Methodology
TheshipusedinthisstudyisamodeloftheKCScontainership.Theshipis199.6meterslong,32.2meterswideandhasadraughtof12.8meters.Thesimulationswereperformedforvariouswaveanglesatawaveheightof5meters,wavewavelengthof100metersandaspeedof15knots.Thewaveanglestestedwere0°,22.5°,45°,67.5°and90°,where0°representswavesfromheadonand90°representswavesfromtheside.
ThenumericalsimulationswereperformedusingANSYSFluentsoftware.TheequationsofmotionandcontinuityweresolvedwithaRANS-basedturbulencemodel,thek-epsilonmo