A mechanism for excitation of coherent structures in wall region of a turbulent boundary layer.

Autor:	Dong-ming, Zhang, Ji-sheng, Luo, Heng, Zhou
Předmět:	TURBULENT boundary layer NUMERICAL solutions to Navier-Stokes equations COMPUTER simulation COHERENT structures REYNOLDS number
Zdroj:	Applied Mathematics & Mechanics; Apr2005, Vol. 26 Issue 4, p415-422, 8p
Abstrakt:	The problem of how the coherent structures in the wall region of a turbulent boundary layer could be excited by the disturbances from the outer region was investigated by using direct numerical simulation (DNS) method. The results show that velocity disturbances at the upper boundary of the wall region could excite coherent structures in the wall region, thus offering a more comprehensive model for individual coherent structures. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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