NUMERICAL SIMULATION OF MANY-COHERENT STRUCTURES IN THE WALL REGION OF TURBULENT BOUNDARY LAYER

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2002, Vol. 19 ›› Issue (5): 383-387.

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NUMERICAL SIMULATION OF MANY-COHERENT STRUCTURES IN THE WALL REGION OF TURBULENT BOUNDARY LAYER

LU Chang-gen

College of Water Resources and Environment, Hehai University, Nanjing 210098, China

Received:2001-03-12 Revised:2001-09-03 Online:2002-09-25 Published:2002-09-25

Abstract

Abstract: A model of many-coherent structures is proposed using the idea of resonant triads in the theory of hydrodynamic stability.The evolution of the many-coherent structures in the wall region of a turbulent boundary layer is studied by combining the finite difference of high accuracy and the Fourier spectral hybrid method for solving the three dimensional Navier-Stokes equations.Compared with the experimental observations,some numerical results are in reasonable agreement.

Key words: many-coherent structure, numerical simulation, turbulent boundary layer

CLC Number:

V211.3

LU Chang-gen. NUMERICAL SIMULATION OF MANY-COHERENT STRUCTURES IN THE WALL REGION OF TURBULENT BOUNDARY LAYER[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2002, 19(5): 383-387.

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NUMERICAL SIMULATION OF MANY-COHERENT STRUCTURES IN THE WALL REGION OF TURBULENT BOUNDARY LAYER

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