난류 채널유동에서 생성된 거대 파열 현상에 관해서

DOI QR코드

DOI QR Code

Na, Yang

  • 발행 : 2001.08.01

초록

A large-scale bursting event has been analyzed in a turbulent channel flow using a data obtained from a direct numerical simulation (DNS). Large-scale, plume-like structures have been frequently observed in many experimental results, but the origin of those structures is far from being fully understood. It is believed that those large scale events occur occasionally but contribute significantly to the generation of Reynolds shear stress in the outer layer. This paper attempts to give detailed examples of those large-scale motions observed in a turbulent channel flow at relatively low Reynolds number.

키워드

직접수치모사;거대 파열 현상;난류 채널유동

참고문헌

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