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Journal Science Intensive Technologies №7 for 2015 г.
Article in number:
Direct numerical simulation of the impact of the incident Mach wave on the boundary layer flow around a sharp leading edge of the plate
Keywords: DNS numerical method disturbance Mach wave mass flow pulsation supersonic flow
Authors:
Q.H. Dinh - Post-graduate Student, Moscow Institute of Physics and Technology (State University). E-mail: hoangquan10383@gmail.com I.V. Egorov - Dr. Sc. (Phys.-Math.), Professor, Corresponding Member, Moscow Institute of Physics and Technology (State University); Head of Department, Central Aerohydrodynamic Institute (TsAGI). E-mail: ivan.egorov@tsagi.ru A.V. Fedorov - Ph. D. (Phys.-Math.), Associate Professor, Moscow Institute of Physics and Technology (State University). E-mail: fedorov@falt.ru
Abstract:
The paper considers the impact of the incident Mach wave in boundary layer flow around a sharp leading edge of the plate. Presents the results of direct numerical simulation study of high excitation disturbances of Mach wave in the boundary layer of the plate with sharp lateral edges at Mach = 2,5. The simulation results mass flow and pulsation levels of mass flow. Defined the area of influence and comparing the results of numerical calculation with experiment. We used second-order approximation in time and third-order ap-proximation in space. The research needs to be continued in order to determine the effects of blunting radius of the edge on the flow.
Pages: 5-10
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