제목(국문) | 열린 공동 유동의 수치적 모사 및 Jet Blowing 을 이용한 제어 |
---|---|
제목(영문) | Numerical Analysis and Control of Open Cavity Flow |
저자 |
장경식
(K.S.Chang
,정회원, 한국과학기술원 기계공학과 항공우주전공
)
▷공저자 네트워크 보기
박승오 (S.O.Park ,정회원, 한국과학기술원 기계공학과 항공우주전공 ) ▷공저자네트워크등록하기 최훈기 (H.K.Choi ,창원대학교 BK 사업단 ) ▷공저자네트워크등록하기 |
초록 | 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. |
keyword | Open cavity(열린 공동), jet blowing(제트송풍), third eddy(소용돌이) |
저널명 | 한국항공우주공학회지 ▷관련저널보기 |
VOL | 30 |
PAGE | 101-108 |
발표년도 | 2002 |
원문파일 |
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