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一种改进的分层剪切湍流亚格子尺度模型及其应用 被引量:1

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摘要 提出了一种新型的分层剪切湍流应力和湍流热通量的动力学亚格子尺度(SGS)模型,并就热分层槽道湍流问题,计算验证了该模型的正确性.采用大涡模拟方法和该动力学亚格子尺度模型,数值研究了在浮力和剪切双重作用下的稳定分层和不稳定分层槽道热剪切湍流,探讨了某些湍流特性随Richardson数的变化规律,并分析了相关的流动物理机制.
出处 《中国科学(A辑)》 CSCD 北大核心 2002年第2期121-131,共11页 Science in China(Series A)
基金 国家自然科学基金(批准号:59776011 19889210) 国家基础研究发展规划 中国科学院"百人计划"和教育部"跨世纪优秀人才培养计划"资助项目
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