• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.30 no.5
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• pp.101-108
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• 2002

A numerical simulation of an incompressible cavity flow is conducted. Two dimensional Navier-Stokes equations are integrated using staggered grid and a finite volume method with C-QUICK scheme for spatial derivatives and fully implicit scheme for the time derivatives. SIMPLE-C algorithm is employed to solve the pressure field. Computational results show that the third eddy is generated in the shear layer mode but not in the steady mode. This signifies that the third eddy plays an important role in cavity flow stability. As a means to control the flow, jet blowing is applied to a position below the cavity upstream edge. Effects of flow control parameters on the stability such as the frequency, the phase, and the velocity magnitude are reported.

• 열린충남
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• s.40
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• pp.94-112
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• 2007

• 열린충남
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• s.40
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• pp.220-221
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• 2007

• 열린충남
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• s.32
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• pp.126-127
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• 2005

• 열린충남
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• s.38
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• pp.176-177
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• 2007

• 대학교육
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• s.94
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• pp.109-113
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• 1998

• The Optical Journal
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• s.128
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• pp.51-53
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• 2010

상반기에 많은 산업박람회가 열린 가운데 광학 및 정밀기기 관련 전시회가 지난 4월부터 6월까지 집중적으로 열렸다. 본 고에서는 한국광학기기협회와 회원사가 한국공동관으로 참가한 일본 요코하마에서 열린 '렌즈 설계 및 제조 박람회'를 비롯하여 국내의 'LED & Optical Expo', '월드 IT 쇼', 'LED & OLED Expo' 등에 참가한 회원사들의 우수제품 및 기술에 대해서 집중 소개한다.

• 한국전산유체공학회:학술대회논문집
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• 2005.10a
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• pp.239-243
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• 2005

Fully three-dimensional Large Eddy Simulation calculations of the flow past 2D cavity are conducted to study the purging of neutrally buoyant or dense miscible contaminants introduced instantaneously inside the cavity. The length to depth ratio(L/D) is 2 and Reynolds number based on the depth is 3,360. Fully developed turbulent inflow are fed at the inlet from precursor simulation of channel flow. Mean flow pattern and unsteady features are investigated based on the experimental data of Pereira and Sousa. From the study of mass exchange processes, it is found that the mechanism of removal of the contaminant is very different between the non-buoyant and buoyant cases. In the buoyant case, internal wave motion which interacts with a strong cavity vortex is dominant in the ejection mechanism of the contaminants.

• Korea Petroleum Association Journal
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• no.5 s.147
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• pp.54-60
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• 1993

이 자료들은 지난 4월 23일 한국종합전시관 회의실에서 열린 에너지경제연구원, 해외석유개발협회 공동주최의 정책세미나에서 발표된 내용을 옮긴 것이다.

• Korea Petroleum Association Journal
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• no.11 s.105
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• pp.114-119
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• 1989

이 자료는 지난 10월 12일 모나코의 몬테 카롤로에서 열린 제2차 세계LPG포럼에서 발표한 주제논문을 옮긴 것이다. <편집자 주>