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Hybrid Methods in Engineering

年間 4 号発行

ISSN 印刷: 1099-2391

ISSN オンライン: 2641-7359

SELF-SIMILAR COMPRESSIBLE LAMINAR BOUNDARY LAYERS BEHIND A NORMAL SHOCK WAVE ADVANCING INTO A STATIONARY FLUID

巻 1, 発行 3, 1999, 14 pages
DOI: 10.1615/HybMethEng.v1.i3.30
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要約

A new methodology of deriving a self-similar solution of the compressible laminar boundary layer equations is applied to investigate the airflow behind a normal shock wave advancing into a stationary fluid bounded by a solid wall. Modified Levy-Mangier and Dorodnitsyn-Howarth transformations are used to solve the boundary layer flow on a smooth flat plate with no external pressure gradient. These transformations describe the similarity variables in terms of a power of the density that appears in the viscosity-temperature power law relation. This results in an explicit relation between the stream function and the temperature fields described by a closed coupled system of nonlinear ordinary differential equations. Solutions of the velocity and temperature profiles and the influence of the wall to external flow temperature ratio are presented for various shock wave strengths.

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