서지주요정보
비점성 및 점성전단류를 지나는 2차원 임의 익형에 관한 유동 = Inviscid and viscous fluid flow over a two-dimensional slender body in a simple shear layer
서명 / 저자 비점성 및 점성전단류를 지나는 2차원 임의 익형에 관한 유동 = Inviscid and viscous fluid flow over a two-dimensional slender body in a simple shear layer / 조철형.
저자명 조철형 ; Cho, Chul-Hyung
발행사항 [서울 : 한국과학기술원, 1980].
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소장정보

등록번호

4000781

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 8023

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초록정보

The purpose of this research is to study the behavior of a slender two dionensional body placed in a simple linear shear stream, potential or viscous. The method taken in this report is based upon coordinate transformation to natccral nonorthogonal curvilinear coordinate system to fit bodies of arbitrary cross-section shape, following Thames, et. al. Automatic numerical grid generation and clustering of meshes toward the solid boundary is carried using simple algebraic method. This technique improves the concputational resolution of foundary layer region and presents the capability of solving higher Reynolds number flow than before. The transformed Navier-Stokes equation, in the form of equations of vorticity transport function and stream function, are solved numerically using successive over-relaxation method for the airfoil NACA64A010 at zero angle of attack. For the inviscid flow case, equations are simpler due to the conservation of free stream vorticity as stateu by Helmhdtz theorem. For the viscous flow various Reynolds numbers from 100 to 5,000 are taken and in all cases it is found that the leading stagnation point falls upon the inviscid case. Also a very interesting pair of seperated recirculating bubbles are found near the leading edge of the acifoil, which merges into one as Reynolds number is increased. He results such as field velocity vectors near airfoil, pressecre distributions on the airfoil are computer-plotterd and the force coefficient variation with the Reynolds number is presented. Despite the very reasonable results of the computation, their validity will have to be confironed by experiment because there is no published theory or experimental data for direct comparison.

서지기타정보

서지기타정보
청구기호 {MME 8023
형태사항 [v], 34, [27] p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Chul-Hyung Cho
지도교수의 한글표기 : 장근식
지도교수의 영문표기 : Keun-Sik Chang
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 수록
주제 Shear flow.
Viscous flow.
Coordinate transformation.
Numerical grid generation (Numerical analysis)
Boundary layer.
점성류. --과학기술용어시소러스
전단류. --과학기술용어시소러스
좌표 변환. --과학기술용어시소러스
격자 생성. --과학기술용어시소러스
경계층 유동. --과학기술용어시소러스
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