A theoretical model for Reynolds-stress and dissipation-rate budgets in near-wall region

来源 :中国科学A辑(英文版) | 被引量 : 0次 | 上传用户:owenm87
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
A 3-D wave model for the turbulent coherent structures in near-wall region is proposed. The transport nature of the Reynolds stresses and dissipation rate of the turbulence kinetic energy are shown via computation based on the theoretical model. The mean velocity profile is also computed by using the same theoretical model. The theoretical results are in good agreement with those found from DNS, indicating that the theoretical model proposed can correctly describe the physical mechanism of turbulence in near wall region and it thus possibly opens a new way for turbulence modeling in this region.
其他文献
The excitation spectra in the wavelength range of 19-40 nm for highly ionized sulphur ions were measured by using the beam-foil method at the Heavy Ion Research
运用Leznov-Saveliev代数分析方法和Drinfeld-Sokolov构造分别给出超协变形式和分量形式超Liouville模型精确解.
In contrast with the coezyme, two coenzyme analogs, ADP-ribose and SNAD, bind non-cooperatively to D-glyceraldehyde-3-phosphate dehydrogenase (GAPDH). Palinurus
In this paper the authors classify saline lake sediments into the cold, warm and eurythermal phases, reveal the consistency between the zoning of hydrochemical
在微扰QCDαs 阶 (NLO)近似和核 (A)的部分子分布函数采用双重Q2重标度模型 (DQ2 RM)下 ,讨论了 p N(A)Drell Yan过程中K因子的变化 .结果表明K因子不能近似当作常数 .它随靶
In order for optical interconnection technologies to be incorporated into the next-generation parallel computers, new optoelectronic computer-aided design, inte
将简便而又直接的齐次平衡法推广应用到求Boussinesq方程的Backlund变换,精确孤子解和相似约化.这种方法可以普遍应用.