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Numerical Simulation on Flow Control for Drag Reduction of Revolution Body Using Dimpled Surface
  • ISSN号：1006-706X
  • 期刊名称：《钢铁研究学报：英文版》
  • 时间：0
  • 分类：TB17[生物学—生物工程;一般工业技术] V211.3[航空宇航科学与技术—航空宇航推进理论与工程;航空宇航科学技术]
  • 作者机构：[1]College of Agriculture, Jilin University, Changchun 130062 Jilin, China, [2]MOE Key Laboratory of Bionics Engineering, Jilin University, Changchun 130022 Jilin, China
  • 相关基金：Sponsored by the National Natural Science Foundation of China （50635030） , the Technology Development Plan of Jilin Province （20096032） , the Major Program of Science and Technology Development of Jilin Province （09ZDGG001） and the Youth Research Start-up Fund of Ag- riculture Department of Jilin University （4305050102K7）
作者： 王晶[1,2], 张成春[2], 任露泉[2], 韩志武[2]
关键词： engineering, bionics, dimpled, surface, drag, reduction, numerical, simulation, revolution, body, engineering bionics, dimpled surface, drag reduction, numerical simulation, revolution body
中文摘要：

Numerical simulation on the flow fields near the dimpled and the smooth revolution bodies are performed and compared by using SST k-ω turbulence model, to explain the reasons of friction and base drag reductions on the bionic dimpled surface and the control behaviors of dimpled surface to boundary layer near wall of the revolution body. The simulation results show that the dimpled surface reduces the skin friction drag through reducing the velocity gradient and turbulent intensity, and reduces the base drag through weakening the pumping action on the flow behind the revolution body caused by the external flow; the low speed rotating vortexes in the dimples segregate the external flow and the revolution body; and the low speed rotating vortexes forming in the bottom of dimples can produce negative skin friction.

英文摘要：

Numerical simulation on the flow fields near the dimpled and the smooth revolution bodies are performed and compared by using SST k-ω turbulence model, to explain the reasons of friction and base drag reductions on the bionic dimpled surface and the control behaviors of dimpled surface to boundary layer near wall of the revolution body. The simulation results show that the dimpled surface reduces the skin friction drag through reducing the velocity gradient and turbulent intensity, and reduces the base drag through weakening the pumping action on the flow behind the revolution body caused by the external flow; the low speed rotating vortexes in the dimples segregate the external flow and the revolution body; and the low speed rotating vortexes forming in the bottom of dimples can produce negative skin friction.

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期刊信息
  • 《钢铁研究学报：英文版》
  • 中国科技核心期刊
  • 主管单位:中国钢铁工业协会
  • 主办单位:冶金部钢铁研究总院
  • 主编：Tian Zhi-ling
  • 地址：北京学院南路76号
  • 邮编：100081
  • 邮箱：gtyjxb-e@163.com
  • 电话：010-62182295
  • 国际标准刊号：ISSN：1006-706X
  • 国内统一刊号：ISSN：11-3678/TF
  • 邮发代号:82-767
  • 获奖情况:
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,美国剑桥科学文摘,美国科学引文索引（扩展库）,英国科学文摘数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊
  • 被引量:167