Examination of prediction models for turbulent channel and boundary layer flows = 두 평판 사이의 유동과 경계층 유동에 대한 난류 계산 모델의 시험

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Cebeci \& Bradshaw``s improved mixing length model, Mellor \& Herring``s turbulent kinetic energy equation model, and Ng \& Spalding``s two equation model are examined with wall bounded shear flows. Two dimensional flat plate boundary layer flows and fully developed channel flows are selected as test flows. An implicit finite difference scheme with variable grid size is used to solve the modeled equations. Since the two equation model is not valid for very low turbulent Reynolds number region, a computational matching scheme is developed in this study in such a way that within an equilibrium layer solutions of the two equation model are smoothly matched with those of Mellor \& Herring``s model. By comparing various models, it is found that the Ng \& Spalding``s two equation model with matching boundary conditions yields best results.
Advisors
Chung, Myung-Kyoonresearcher정명균researcher
Description
한국과학기술원 : 기계공학과,
Publisher
한국과학기술원
Issue Date
1980
Identifier
62787/325007 / 000781146
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 기계공학과, 1980.2, [ [v], 60, [3] p. ]

URI
http://hdl.handle.net/10203/47063
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=62787&flag=dissertation
Appears in Collection
ME-Theses_Master(석사논문)
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