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Journal of Applied Fluid Mechanics، جلد ۱۰، شماره ۲، صفحات ۶۰۵-۶۱۴
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عنوان انگلیسی Laminar Instability of Parallel and Nonparallel Flows of Adiabatic Flat Plate
چکیده انگلیسی مقاله In the present paper, spatial linear stability of adiabatic laminar flat plate boundary layer is computed numerically. This work is interested on the non-parallel compressible flow for a two-dimensional (2D) and three-dimensional (3D) disturbances. Stability diagrams, in the form of curves of constant spatial amplification rates are presented and constitute the original contribution of this paper. However, to assess the validity of the present computations, some important results of parallel flow stability are presented in the convenient and familiar form of contours of constant spatial amplification rates for both 2D and 3D waves in the Mach number range Me= 0.9 to 2.2. Comparisons results for the parallel flow agree with those obtained by Mack and Wazzan, Taghavi and Keltner, but differ from the nonparallel flow giving some important spatial stability results and showing the importance of the wave angle ψ and the Mach number, even the stability diagrams presented in this paper concerned the Reynolds number gives different results for the parallel and nonparallel flows.
کلیدواژه‌های انگلیسی مقاله Laminar instability, Compressible boundary layer, Transonic flow, Stability diagrams, Supersonic flow
نویسندگان مقاله Y. Mérida |
Laboratory of Fluid Mechanics (LMF), Faculty of Sciences of Tunis (FST), University El Manar (UM),University Campus, 2092 El Manar II, Tunis,Tunisia

M. Jelliti |
Laboratory of Fluid Mechanics (LMF), Faculty of Sciences of Tunis (FST), University El Manar (UM),University Campus, 2092 El Manar II, Tunis,Tunisia

T. Lili |
Laboratory of Fluid Mechanics (LMF), Faculty of Sciences of Tunis (FST), University El Manar (UM),University Campus, 2092 El Manar II, Tunis,Tunisia

نشانی اینترنتی https://www.jafmonline.net/article_460_52e1c0e83d3d25180ae1bfa29337d6b2.pdf
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