The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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A Study on Flow and Heat Transfer in One Directional Periodic-Oscillating Cylinder

일방향 주기적 진동하는 원통 내의 유동 및 열전달 연구

  • 박준상 (한라대학교 기계자동차공학부)
  • Received : 2010.04.21
  • Accepted : 2010.08.21
  • Published : 2010.10.01
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Abstract

A study has been made of cool-down process on an incompressible fluid contained in a periodically oscillating cylinder when an abrupt cooling of wall temperature is imposed. Characteristics of flow and heat transfer are investigated along the variations of oscillating frequency and amplitude. One found the flow regimes are divided into 4-modes : 1 thermal island mode, 2 thermal island mode, 4 thermal island mode and asymmetry mode. Comprehensive analysis for each mode are given with a physical mechanism on cool-down process.

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References

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