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条件滤波大涡模拟方程封闭模型检验
  • ISSN号：0253-231X
  • 期刊名称：工程热物理学报
  • 时间：0
  • 页码：357-359
  • 分类：V231.2[航空宇航科学与技术—航空宇航推进理论与工程;航空宇航科学技术]
  • 作者机构：[1]中国科学院力学研究所非线性力学国家重点实验室,北京100190
  • 相关基金：国家自然科学基金资助项目（No.50906096;No.10732090;No.50890182）;973资助项目子课题（No.2009CB724103;No.2007CB814803）
  • 相关项目：大振幅、高频率可压缩交变流动低温传热机理研究
作者： 张健|姚华栋|张星|
关键词： 条件滤波, 大涡模拟, 湍流, 化学反应流, conditionally filtered, LES, turbulence, chemical reacting flow
中文摘要：

使用直接数值模拟和条件滤波大涡模拟相结合的方法检验了线性扩散假设和一阶近似在条件滤波大涡模拟中的应用。线性扩散假设用于封闭条件滤波大涡模拟方程中的混合分数空间输运项，一阶近似用于封闭条件滤波大涡模拟方程中的条件滤波化学反应源项。通过使用条件滤波大涡模拟计算出的反应物大尺度量的一阶、二阶统计矩与直接数值模拟结果符合很好，验证了这些近似的合理性，为进一步发展条件滤波大涡模拟方法奠定了基础。

英文摘要：

The DNS and the conditionally filtered LES （CFLES） were combined to examine validity of the linear-diffusion approximation and the first-order closure in CFLES equation the The linear-diffusion approximation was applied to closing transport term in mixture-fraction space in CFLES equation, and the first-order closure was used in closing conditionally filtered reaction source term. The first two order moments of filtered mass-fraction of the reactant were obtained by using CFLES and were closed to results of the DNS, which well examined the validity of the approximations mentioned above.

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非稳态化学反应流大涡模拟的过程变量方法
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复杂边界湍流大涡模拟的理论和方法
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大振幅、高频率可压缩交变流动低温传热机理研究
期刊论文 40 会议论文 22 专利 1
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期刊信息
  • 《工程热物理学报》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国工程热物理学会 中国科学院工程热物理研究所
  • 主编：徐建中
  • 地址：北京2706信箱
  • 邮编：100080
  • 邮箱：xb@mail.etp.ac.cn
  • 电话：010-62584937
  • 国际标准刊号：ISSN：0253-231X
  • 国内统一刊号：ISSN：11-2091/O4
  • 邮发代号:2-185
  • 获奖情况:
  • 中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:21026