Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2000.11b
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- Pages.609-614
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- 2000
Resonance Frequency of the Natural Convection in the Closure Cavity for the Variable Aspect Ratio
종횡비가 변하는 공동 내 자연대류의 공진주파수
- Published : 2000.11.02
Abstract
This numerical study investigate resonance frequency of natural convection for steady state, periodic flow and chaotic flow in two-dimensional direct numerical simulations, differentially heated, vertical cavities having aspect ratios near unity. The enclosure cavity has isothermal and time dependent temperature side walls and adiabatic top/bottom walls. The aspect ratio is 1/3, 1/2, 1, 2, and 3 for the varying Rayleigh number. Resonance frequency for AR=1 has decrease as the aspect ratio and the Rayleigh number are increasing.
Keywords