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Flow patterns and dissipation of turbulent kinetic energy in near-wall turbulence |
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| Authors: | Zhaoshun Zhang Bing Ma Guixiang Cui Chunxiao Xu |
| Institution: | (1) Department of Engineering Mechanics, Tsinghua University, 100084 Beijing, China |
| Abstract: | It is disclosed the flow patterns of turbulent flows in near wall region by means of topological analysis. It has found that there exists a close relationship between the topological characteristics and the spikes which are dominated by the strong normal velocity fluctuations near the wall. It is also shown that the dissipation of turbulent kinetic energy is closely related to the spike events. |
| Keywords: | wall turbulence dissipation of turbulent kinetic energy topological analysis of flows |
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