서지주요정보
定常 및 非定常 고속기체 유동 문제를 위한 TVD Euler 해법의 비교 연구 = Comparative study of the TVD euler solvers for the steady and unsteady high speed gas dynamic flows
서명 / 저자 定常 및 非定常 고속기체 유동 문제를 위한 TVD Euler 해법의 비교 연구 = Comparative study of the TVD euler solvers for the steady and unsteady high speed gas dynamic flows / 안성호.
저자명 안성호 ; Ahn, Sung-Ho
발행사항 [서울 : 한국과학기술원, 1988].
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소장정보

등록번호

4104889

소장위치/청구기호

학술문화관(문화관) 보존서고

MAE 8808

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초록정보

In recent years a number of shock-capturing numerical algorithms based on Total Variation Diminishing (TVD) schemes have been developed for the solution of the Euler equations in gas dynamics. These upwind methods are conservative, second-order accurate in time and space, and make use of the general coordinate systems to treat the complex flow geometries. Nonlinear flux limiters are employed to yield oscillation-free sharp shock profiles. In this paper, to study the numerical properties and performance of the TVD schemes in a comparative manner, we have chosen three current popular methods: the Osher scheme, the Yang's and the van-Leer's. In the Osher scheme, numerical dissipation operator is obtained from the solution of an Approximate Riemann problem. In the Yang's and van-Leer's, on the other hand, it is obtained from the flux-splitting. These methods are applied first to a steady problem, the supersonic internal flow through a channel having a 2% circular arc bump on a wall, with the channel inlet Mach number $M_infty$ =1.4. As an unsteady application, a normal shock moving through a similar channel having a 15% circular arc bump (shock speed $M_s$=2.0) is considered. The results are discussed and the numerical characteristics of these methods are carefully differentiated in the text.

서지기타정보

서지기타정보
청구기호 {MAE 8808
형태사항 v, 51 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Sung-Ho Ahn
지도교수의 한글표기 : 장근식
지도교수의 영문표기 : Keun-Shik Chang
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 31-33
주제 Unsteady flow (Fluid dynamics)
Aerodynamics, supersonic.
Nonlinear mechanics.
Euler 방정식. --과학기술용어시소러스
정상류. --과학기술용어시소러스
비정상류. --과학기술용어시소러스
기체 유동. --과학기술용어시소러스
충격파. --과학기술용어시소러스
Gas flow.
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