{"title":"Numerical Simulation of Viscoelastic Flow in Three-Dimensional Rectangular Abrupt Contraction Channels","authors":"Takehiro Yamamoto, Hideki Akiyoshi, K. Nakamura","doi":"10.4188/JTE1955.45.63","DOIUrl":null,"url":null,"abstract":"Numerical simulation of viscoelastic flow in two three-dimensional (3-D) rectangular abrupt contraction channels was carried out using the Giesekus model. The HSMAC (Highly Simplified Marker and Cell) scheme was applied to solve the discretized basic equations. 3-D flow patterns and the distribution of vortex size were investigated to elucidate 3-D flow property. Several 3-D flow phenomena such as a spiral flow were predicted. The effect of wall was strong when the aspect ratio of the channel (width/height) was small, and the 3-D flow behavior was notable near the channel wall: the vortex size drastically changed near the wall.","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1999-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Textile Machinery Society of Japan","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4188/JTE1955.45.63","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
Numerical simulation of viscoelastic flow in two three-dimensional (3-D) rectangular abrupt contraction channels was carried out using the Giesekus model. The HSMAC (Highly Simplified Marker and Cell) scheme was applied to solve the discretized basic equations. 3-D flow patterns and the distribution of vortex size were investigated to elucidate 3-D flow property. Several 3-D flow phenomena such as a spiral flow were predicted. The effect of wall was strong when the aspect ratio of the channel (width/height) was small, and the 3-D flow behavior was notable near the channel wall: the vortex size drastically changed near the wall.
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