Experimental and numerical investigation of controlled disturbances development from two sources in supersonic boundary layer
作者机构：Khristianovich Institute of Theoretical and Applied Mechanics SB RASNovosibirsk 630090Russia
出 版 物：《Advances in Aerodynamics》 (空气动力学进展（英文）)
年 卷 期：2019年第1卷第1期
页 面：288-300页
学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）]
基 金：The research was supported by RFBR(Grant No.18-31-00171 mol_a) The research was partly carried out within the framework of the Program of Fundamental Scientific Research of the state academies of sciences in 2013-2020(project No.АААА-А17-117030610125-7) The work was performed using the equipment of the CCU“Mechanics”
主 题：:DNS Computational modeling Supersonic boundary layer Compressibility Discharge Flat plate Hot-wire anemometer Instability Turbulence
摘 要：The paper presents the experimental results and the results of direct numerical simulation of the development and interaction of two wave trains from two point sources of controlled disturbances in a supersonic boundary layer on a flat plate with an incident flow Mach number of *** were located parallel to the leading edge of the *** the introduction of controlled disturbances into the boundary layer,the normal component of the mass flow rate was varied in the *** the experiment,periodic glow discharges at a frequency of 20 kHz were *** both cases,the disturbances sources worked *** flow rate pulsations were measured and recorded in sections,parallel to the leading edge of the model,near the maximum of disturbances along the boundary *** the experiment,a constanttemperature hot-wire anemometer was *** performing a discrete Fourier transform,the spatial distributions of disturbances,the beta-spectra were determined,and the wave characteristics of the development of disturbances downstream were *** addition,direct numerical simulation of the downstream development of disturbances from a single source was *** work presents a comparison of experimental and theoretical calculated *** paper discusses the effects inherent in the interaction of unstable traveling controlled disturbances from two sources operating synchronously.
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