Experimental study of resonant interactions of instability waves in self-similar boundary layer with an adverse pressure gradient: II. Detuned resonances
摘要：
This experimental study is of the initial nonlinear stages of the laminar-turbulent transition of a self-similar boundary layer with an adverse pressure gradient (Hartree parameter βH = −0.115). All measurements were performed at controlled disturbance conditions at various initial spectra of excited 3D (in general) instability waves. The results are presented in three papers: part 1 (Borodulin V I, Kachanov Y S and Koptsev D B 2002 J. Turbulence 3 062), part 2 (this paper), and part 3 (Borodulin V I, Kachanov Y S and Koptsev D B 2002 J. Turbulence 3 064). The experimental procedure, the basic flow characteristics, the disturbance generator, the regimes of measurements (related to all parts), and the results of measurements obtained in cases of tuned resonant interactions of Tollmien–Schlichting (TS) waves are presented in part 1. The results of investigation of resonant amplification of broadband, continuous-spectrum instability waves (random in time and space), which simulate some background perturbations, are described in part 3.
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DOI：
10.1088/1468-5248/3/1/063
被引量：
年份：
2002
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