서지주요정보
2차원 초음속 비정상 압축성 램프 유동의 해석 = Numerical analysis of unsteady supersonic compression ramp flow
서명 / 저자 2차원 초음속 비정상 압축성 램프 유동의 해석 = Numerical analysis of unsteady supersonic compression ramp flow / 강경민.
저자명 강경민 ; Kang, Kyoung-Min
발행사항 [대전 : 한국과학기술원, 2000].
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8010913

소장위치/청구기호

학술문화관(문화관) 보존서고

MAE 00003

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초록정보

In this numerical work, two dimensional supersonic laminar flow past moving ramp is simulated. The compression ramp starts to move from 0 to 10 degree wedge angle at constant angular speed, and when the wedge angle reaches the final wedge angle, the ramp ceases moving. Three cases of different angular speed and four cases of different Reynolds number have been simulated to examine the effect of those parameters on unsteady behavior of the flow. To solve the two dimensional compressible Navier-Stokes equation, a finite volume method with 2nd order AUSM scheme is employed for spatial derivatives, anda Point SGS implicit method is employed for time integration. To prevent numerical errors, geometrical conservation law (GCL) is solved along with the flow conservation laws. A distinct unsteady behavior was observed as the ramp moves. An apparent wall pressure jump greater than that of steady state was observed. The separation bubble around the corner evolves gradually as the ramp moves, and continues to grow to reach its final state after the ramp stops moving.

서지기타정보

서지기타정보
청구기호 {MAE 00003
형태사항 v, 54 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Kyoung-Min Kang
지도교수의 한글표기 : 박승오
지도교수의 영문표기 : Seung-O Park
학위논문 학위논문(석사) - 한국과학기술원 : 항공우주공학전공,
서지주기 참고문헌 : p. 52-54
주제 초음속
Navier-Stokes 방정식
움직이는 경사면
Supersonic
Navier-Stokes equation
Moving ramp
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