Transactions of the Korean Society of Mechanical Engineers (대한기계학회논문집)
- Volume 18 Issue 2
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- Pages.479-491
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- 1994
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- 1225-5963(pISSN)
DOI QR Code
Discrete Vortex Simulation of Turbulent Separated and Reattaching Flow With Local Perturbation
국소교란이 있는 난류박리 재부착유동의 이산와류 수치해석
Abstract
Discrete vortex method was applied for simulating an active control of turbulent leading- edge separation bubble. The leading-edge separation zone was perturbed by a time-dependent sinusoidal perturbation of different frequencies and levels. In order to describe the local sinusoidal perturbation at the separation point, a source pulsation vortex technique was proposed. The present two-dimensional vortex simulations were qualitatively compared with the experimental results for a blunt circular cylinder, where perturbation was introduced along the square-cut leading edge of the cylinder
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