Oscillatory natural convection in trapezoidal enclosures

Noah I. Tracy; Daniel W. Crunkleton

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Oscillatory natural convection in trapezoidal enclosures

机译：梯形外壳中的振荡自然对流

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Natural convective flow oscillations in isosceles trapezoids are considered for three vertex angles, 22°, 45°, and 67°. Simulations for smaller angles show periodicity that was superimposed with significant perturbations. For the largest angle, 67°, periodicity was observed which was similar to previous calculation of periodic flow oscillations in rectangles and squares in the second critical Rayleigh number regime. Additionally, the observed oscillations for the 67° case was fractal in nature, with periodicity maintained at different time scales.

机译：等腰梯形中的自然对流流动振荡考虑了三个顶点角：22°，45°和67°。较小角度的仿真显示出周期性，并带有明显的扰动。对于最大角度67°，观察到周期性，这与先前在第二个临界瑞利数域中矩形和正方形中周期性流动振荡的计算相似。此外，在67°情况下观察到的振荡本质上是分形的，在不同的时间尺度上保持周期性。

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来源
《International Journal of Heat and Mass Transfer》 |2012年第18期|p.4498-4510|共13页
作者
Noah I. Tracy; Daniel W. Crunkleton;
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作者单位

Department of Chemical Engineering, University of Tulsa, 800 S. Tucker Dr., Tulsa, OK 74104, USA;

Department of Chemical Engineering, University of Tulsa, 800 S. Tucker Dr., Tulsa, OK 74104, USA;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
natural convection; trapezoid; oscillation; rayleigh number; CFD;

机译：自然对流梯形振动瑞利数CFD;

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Oscillatory natural convection in trapezoidal enclosures

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