서지주요정보
박층 난류 Navier-stokes 식과 euler식을 이용한 boattail형 발사체의 축대칭 천음속 유동 연구 = Thin-layer turbulent navier-stokes and euler flow analysis for the axisymmetric boattailed projectiles at transonic speeds
서명 / 저자 박층 난류 Navier-stokes 식과 euler식을 이용한 boattail형 발사체의 축대칭 천음속 유동 연구 = Thin-layer turbulent navier-stokes and euler flow analysis for the axisymmetric boattailed projectiles at transonic speeds / 최성욱.
저자명 최성욱 ; Choi, Seong-Wook
발행사항 [서울 : 한국과학기술원, 1988].
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소장정보

등록번호

4104885

소장위치/청구기호

학술문화관(문화관) 보존서고

MAE 8815

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이용가능

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초록정보

The thin-layer compressible Navier-Stokes Equations are numerically solved, together with the Euler equations as a limited case, for the transonic flow past axisymmetric boattailed projectiles. Applied is a typical implicit approximate-factorization finite difference method, first developed by Beam and Warming and then extended to the general curvilinear coordinates by Steger. A Pulliam-type modification is also test-used. This modification transforms the coupled system of equations into an uncoupled diagonal form which requires less computational work. For steady state applications the resulting diagonal algorithm retains the same stability and accuracy as those characteristic to the original algorithm. Numerical solutions are presented for the inviscid as well as viscous turbulent transonic flows past axisymmetric projectile configuration, whose bottail angle is varied from 5 degrees to 15 degrees. The turbulence is expressed by a well-known algebraic model of Baldwin-Lomax type, applicable to the present axisymmetric flow with moderate separation. Details of the flow field solution such as surface pressure curves, and the field pressure contours, and the shear-layer velocity profiles are presented. Good qualitative comparison with the earlier experimental data was obtained and the critical boattail angle at which the boundary layer separates from the surface was also determined.

서지기타정보

서지기타정보
청구기호 {MAE 8815
형태사항 iv, 44 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 수록
저자명의 영문표기 : Seong-Wook Choi
지도교수의 한글표기 : 장근식
지도교수의 영문표기 : Keun-Shik Chang
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 26-27
주제 Turbulence.
Projectiles.
Aerodynamics, transonic.
Finite differences.
Navier-Stokes 방정식. --과학기술용어시소러스
Euler 방정식. --과학기술용어시소러스
천음속류. --과학기술용어시소러스
발사체. --과학기술용어시소러스
점성류. --과학기술용어시소러스
Navier-Stokes equations.
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