Wave resistance of profiled surfaces of the jet nozzle and head of a missile

Aerospace propulsion engineering


Sergienko A. A., Semenov V. V.*

Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

*e-mail: vasily_semenov@mail.ru


Theoretical analysis and experimental research of a supersonic flow of gas nozzle and head part of the flying device with rhombic, row-like and chess relief surfaces is carried out in the work. For small displacement of a surface the theoretical description of the problem in linear approximation with flat waves is presented. In experience with model nozzle inserts it is revealed a new phenomenon - critical modes of a flow over the relief surface, which happen each time, when the corner of an inclination of a wave of displacement coincides with the Mach corner, and in the case of =0 of this corner the flow passes in the Prandtle - Meyer form of the flow.


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