• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Analysis of drag reduction and heat transfer under a non-similar condition between turbulent flow and temperature fields

Research Project

Project/Area Number 13650205
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Thermal engineering
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

KURODA Akiyoshi  Hokkaido Univ. Grad. School of Eng., Assoc. Prof., 大学院・工学研究科, 助教授 (90202051)

Co-Investigator(Kenkyū-buntansha) KUDO Kazuhiko  Hokkaido Univ. Grad. School of Eng., Prof., 大学院・工学研究科, 教授 (40142690)
Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 2002: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2001: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsTurbulence Control / Numerical Simulation / Turbulent Heat Transfer / Similarity / Channel Flow / DNS
Research Abstract

Numerical simulations of the velocity and temperature fields in a fully developed turbulent channel flow were carried out. It is well known that the similarity between the heat transfer and the friction exists in such a turbulent wall bounded flow as the Reynolds analogy. We applied a turbulence control to reduce the drag by blowing and suction on the channel walls. And it is found that the heat transfer rate reduces as well as the skin friction does. But the rate of the heat transfer to the momentum transfer is a littie larger than that of the natural (no-control) flow. The correlation between velocity and temperature fluctuations weakens owing to the local pressure gradient when the blowing velocity is imposed on the wall against the fluid moving towards the wall.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (3 results)

All Other

All Publications (3 results)

  • [Publications] 坂斉秀和, 工藤一彦, 黒田明慈: "吹き出し・吸い込み制御による壁面摩擦低減とその温度場のDNS"第40回日本伝熱シンポジウム講演論文集. (発表予定). (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Sakasai,H., Kudo,K., Kuroda,A.: "Direct Numerical Simulation of Temperature Field in Wall-Bounded Flow with Injection and Suction Aimed for Drag Reduction"Proc. 40^<th> National Heat Transfer Symposium of Japan. (to be published). (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 黒田明慈, 坂斉秀和, 工藤一彦: "吹き出し・吸い込み制御による壁面摩擦低減とその温度場のDNS"第40回日本伝熱シンポジウム講演論文集. (発表予定). (2003)

    • Related Report
      2002 Annual Research Report

URL: 

Published: 2001-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi