1) near-wall turbulence 近壁湍流1. And statistic characteristic of near-wall turbulence is researched. 在此基础上,采用剪切修正亚格子模型的大涡模拟(LES)的方法,模拟了不同雷诺数下的槽道湍流,研究了近壁湍流的统计性质,进而在壁面加入吹吸,研究了空间周期的湍流场中雷诺应力和速度变形率之间的相位关系...
Using a variety of techniques, including direct tracking of the structures, it is shown that an important characteristic of wall-bounded turbulence is temporally intermittent bursting, which is present at all distances from the wall, and in other shear flows. Its properties and time scales are ...
Near-wall turbulence. 来自 EBSCO 喜欢 0 阅读量: 32 作者:Jiménez,Javier 摘要: The current state of knowledge about the structure of wall-bounded turbulent flows is reviewed, with emphasis on the layers near the wall in which shear is dominant, and particularly on the logarithmic layer. It ...
The computed budgets are used to test existing near-wall turbulence models of the k-epsilon type. It was found that the turbulent transport models should be modified in the vicinity of the wall. It was also found that existing models for the different terms in the epsilon-budget are adequate...
(1987): “Near-wall k —ε -Turbulence Modeling,” 6th Symposium on Turbulent Shear Flows, Toulouse, 17–4Mansour, N. N., Kim, J. and Moin, P., "Near-wall k-epsilon Tur- bulence Modeling", In 6th Symposium on Turbulent Shear Flows, pp. 17-4 (1987)....
Choi, K., 1987, A new look at the near-wall turbulence structure: Advances in Turbulence, 373-382, Springer Verlag.Choi K S.A new look at the near-wall turbulence structure. In: Advances in Turbulence [ C ] . 1987K.-S. Choi, "A New Look at the Near-Wall Turbulence Structure," ...
Theoretical or Mathematical/ boundary layer turbulenceflow simulationfluctuations/ near-wall turbulent characteristicsthin circular cylindersturbulent boundary layerNavy sonar arrayacoustic apertureReynolds numberlarge-eddy simulationnear-wall consistencyUnderstanding the salient physics within the turbulent boundary ...
Passive and active control of near-wall turbulence. Focuses on wall skin friction reduction. Details on the structure of turbulent boundary layers and near-wall turbulence; Suggested methods for stimulating ... Pollard,A. - 《Progress in Aerospace Sciences》 被引量: 15发表: 1997年 Ghivizzani, ...
Part II || On the Dynamics of Near-Wall Turbulence A model of the dynamic physical processes that occur in the near-wall region of a turbulent flow at high Reynolds numbers is described. The hairpin vortex is postulated to be the basic flow structure of the turbulent boundary layer. It i...
Intense Viscous Dissipation Events and the Vorticity Field in Near-Wall TurbulenceIn high Reynolds number turbulent flows there exists a close statistical relationship between the mean viscous dissipation rate e and the mean enstrophy field (Tennekes & Lumley, 1972). For near-wall shear-driven ...