Numerical predictions of thermal convection in a rectangular enclosure with oscillating wall

Chin Hsiang Cheng, Kuo Shu Hung

研究成果: Article同行評審

17 引文 斯高帕斯(Scopus)

摘要

Effects of wall vibration on natural convection in a rectangular enclosure containing air are investigated in this report. In practical applications, the wall vibration driven by an external force leads to periodic variations in the flow and thermal fields within the rectangular enclosure, and hence results in different features from those in a stationary enclosure. Two types of thermal boundary condition are considered, involving a heated-vertical-walls and a heated-horizontal-walls situations. The solution method is based on a two-stage pressure-correction scheme, which is applied to determine the absolute pressure, density, temperature, and velocity components of the compressible flow in enclosures. The vibration frequency of the wall is varied from 1 to 50 Hz and the vibration amplitude is ranged between 1.4% and 5.6% of enclosure length. In this study, Rayleigh number is fixed at 105. For the parameter ranges considered, results show that a maximum amplitude of 36.73 in Nusselt number oscillation is attained due to the wall vibration.

原文English
頁(從 - 到)791-809
頁數19
期刊Numerical Heat Transfer; Part A: Applications
48
發行號8
DOIs
出版狀態Published - 2005 11月 1

All Science Journal Classification (ASJC) codes

  • 數值分析
  • 凝聚態物理學

指紋

深入研究「Numerical predictions of thermal convection in a rectangular enclosure with oscillating wall」主題。共同形成了獨特的指紋。

引用此