서지주요정보
움직이는 조종면의 천이적 공력거동에 관한 수치적 연구 = Numerial study on transient aerodynamics of moving control surfaces
서명 / 저자 움직이는 조종면의 천이적 공력거동에 관한 수치적 연구 = Numerial study on transient aerodynamics of moving control surfaces / 최성욱.
저자명 최성욱 ; Choi, Seong-Wook
발행사항 [대전 : 한국과학기술원, 2000].
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등록번호

8011458

소장위치/청구기호

학술문화관(문화관) 보존서고

DAE 00019

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초록정보

Transient aerodynamic response of an airfoil to a moving plane flap and a rapidly deploying spoiler is numerically investigated using two-dimensional Euler and turbulent Navier-Stokes equations, respectively. The control surface moving relative to a stationary airfoil is treated by an overset grid bounded by the Dynamic Domain-Dividing Line (DDDL) the concept of which is developed in this paper. As the Chimera grid method, both conservative and conventional method are used and applied to several cases of the supersonic cylinder in order to verify them. The validation of the Euler code with conservative Chimera grid is conducted for the two cases : the oscillating NACA 0012 airfoil and the transient ramp pitching airfoil. The flowerfields around RAE 2822 airfoil are calculated using the Navier-Stokes equations adopting three turbulence models. The unsteady aerodynamic characteristics of the plane flap moving sin-wave form are investigated using Euler equations. The effects of the slot between airfoil and flap are examined. The aerodynamic response parameters such as delay time, settling time, and time to the lift peak are investigated with the variations of Mach number and deflection time. An algebraic Baldwin-Lomax model, a Wilcox k-ω model, and a SST k-ω turbulence model are used for the unsteady separated flow due to the spoiler motion. The fluid-dynamic mechanism of the adverse lift due to the rapidly deploying spoiler is explaned.The effects of the deploying rate, the location, and the hinge gap of a spoiler on the initial aerodynamic behavior of the airfoil are elaborated. The present computation about the stationary as well as moving spoilers gives results well comparable to the existing experimental data.

서지기타정보

서지기타정보
청구기호 {DAE 00019
형태사항 xi, 132 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 : A, Pointwise SGS schemes [20]. - B, Jacobian matrices for the BSL k-w equations
저자명의 영문표기 : Seong-Wook Choi
지도교수의 한글표기 : 장근식
지도교수의 영문표기 : Keun-Shik Chang
수록잡지명 : "Navier-stokes computation of a rapidly deploying spoiler". AIAA journal of aircraft, , (2000)
학위논문 학위논문(박사) - 한국과학기술원 : 항공우주공학전공,
서지주기 참고문헌 : p. 129-132
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