| 条件滤波大涡模拟方程封闭模型检验 | |
| Alternative Title | EXAMINATIONS ON CLOSURE MODELS OF CONDITIONALLY FILTERED LES |
张健 ; 张星; 姚华栋
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| Source Publication | 工程热物理学报
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| 2011-02-15 | |
| Volume | 32Issue:2Pages:357-359 |
| ISSN | 0253-231X |
| Abstract | 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 |
| Other Abstract | The DNS and the conditionally filtered LES(CFLES) were combined to examine the validity of the linear-diffusion approximation and the first-order closure in CFLES equation.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. 更多 |
| Keyword | 条件滤波 大涡模拟 湍流 化学反应流 |
| Subject Area | 力学 |
| URL | 查看原文 |
| Indexed By | EI ; CSCD |
| Language | 中文 |
| Funding Organization | 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) |
| CSCD ID | CSCD:4125219 |
| Department | LNM湍流 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/44980 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | 张健 |
| Recommended Citation GB/T 7714 | 张健,张星,姚华栋. 条件滤波大涡模拟方程封闭模型检验[J]. 工程热物理学报,2011,32,2,:357-359. |
| APA | 张健,张星,&姚华栋.(2011).条件滤波大涡模拟方程封闭模型检验.工程热物理学报,32(2),357-359. |
| MLA | 张健,et al."条件滤波大涡模拟方程封闭模型检验".工程热物理学报 32.2(2011):357-359. |
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