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1989 Fiscal Year Final Research Report Summary

Turbulent Flow and Heat Transfer of Liquid in a Cylindrical Rotating Container with a Stationary Concentric Cylinder

Research Project

Project/Area Number 63470104
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 化学工学
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

OGINO Fumimaru  Kyoto University, Dept. of Chem. Eng., Professor, 工学部, 教授 (50026069)

Project Period (FY) 1988 – 1989
KeywordsTurbulent Mechanism / Concentric Cylinders / Flow in a Rotating Cylinder
Research Abstract

1. The experimental apparatus consists of a cylindribal rotating container, 14.5-15.2cm in radius, and concentric stationary inner cylinder, 5-llcm in radius. Three components of the velocity of water filled between two cylinders were measured with a laser Doppler anemometer.
2. The result indicates that the flow field is divided into two regions. One is inner region from the center to the point at inner cylinder radius, where the flow is similar to that between two parallel disks and there exists a similar velocity distribution when it is normalized by the radius of inner cylinder and the angular velocity of rotating cylinder. The other is outer region where the flow is similar to Couette flow.
3. The distribution of the normalized vertical component of velocity is independent on the Reynolds number. The absolute value of the velocity is about 1/100 of that of the tangential velocity. The radial velocity was calculated from these measured velocity distributions, and a secondary flow pattern in r-z plane was calculated.
4. The normalized turbulence intensity distributions of three components are independent on the Reynolds number, the distance between two cylinder bottoms and the height of measuring point.
5. The value of the Reynolds stress is nearly zero in the region between two cylinder bottoms and has a peak at slightly outer radial point of the radius of inner cylinder.

  • Research Products

    (4 results)

All Other

All Publications (4 results)

  • [Publications] 荻野文丸: "回転円柱容器と内円柱間の流体の乱流構造" 化学工学協会第54年会研究発表講演要旨集. 579 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 荻野文丸: "回転円柱容器と内円柱間の流体の乱流構造" 化学工学会第55年会研究発表講演要旨集(発表予定). (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Fumimaru Ogino: "Turbulent Structure of Liquid between Rotating Cylidrical Container and Inner Cylinder" 54th Abstract of the Society of Chemical Engineers, Japan, p579, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Fumimaru Ogino: "Turbulent Structure of Liquid between Rotating Cylidrical Container and Inner Cylinder" 55th Abstract of the Society of Chemical Engineers, Japan, p527, 1990.

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1993-03-26  

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