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Free-Stream Disturbance, Continuous Eigenfunctions, Boundary-Layer Instability and Transition

机译：自由扰动，连续特征函数，边界层不稳定性和转移

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摘要

A rational foundation is presented for the application of the linear shear flows to transition prediction, and an explicit method is given for carrying out the necessary calculations. The expansions used are shown to be complete. Sample calculations show that a typical boundary layer is very sensitive to vorticity disturbances in the inner boundary layer, near the critical layer. Vorticity disturbances three or four boundary layer thicknesses above the boundary are nearly uncoupled from the boundary layer in that the amplitudes of the discrete Tollmien-Schlicting waves are an extremely small fraction of the amplitude of the disturbance.

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作者
Grosch, C. E.;
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年度 1980
页码 p.1-92
总页数 92
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Boundary layer stability; Boundary layer transition; Eigenvectors; Free flow; Stream functions (Fluids); Incompressible flow; Navier-stokes equation; Orr-sommerfeld equations; Parallel flow; Shear flow; Three dimensional flow;

机译：边界层稳定性;边界层转换;特征向量;自由流动;流函数（流体）;不可压缩流动; Navier-stokes方程; Orr-sommerfeld方程;平行流;剪切流;三维流动;

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Free-Stream Disturbance, Continuous Eigenfunctions, Boundary-Layer Instability and Transition

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