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Information × Registration Number 0308U001715, 0106U001786 , R & D reports Title Studies in Control Mechanisms of Gas Flows with High and Superhigh speed of Energy Release and Ways of Improving Processes Efficiency popup.stage_title Дослідження механізмів керування процесами високої і надвисокої швидкості виділення енергії Head Kovalenko Nikolaj Dmitrievich, Registration Date 19-02-2008 Organization Institute of Technical Mechanics NASU and NSAU popup.description2 The research subject are mechanisms for controlling thermogasdynamic processes in combustion chambers and nozzle units of rocket engines. The goal is research mechanisms for controlling gasdynamic processes characterized by high and superhigh velocities of energy release. The research methods: mathematical simulation, processing experimental data, information and project searches. The results obtained: thermogasdynamic control of high - enthalpy gas flows in nozzles of rocket engines is studied using mechanisms of high-velocity energy release, based on injection of fluid components of propellant in the nozzle supersonic flow. The effects of the structure and thermogasdynamic parameters of a gas flow and an injected fluid in the nozzle supersonic section of the liquid rocket engine chamber on the velocity and the efficiency of energy release of interacting flows are examined. The influence of the nozzle-throat diameter and the chamber nozzle area ratio on the efficiency of energy release of controllingjets, and the efficiency of creating forces controlling the nozzle thrust vector are studied. Physical and mathematical models of torching a hot injected gas in the nozzle supersonic section of the liquid rocket engine chamber are analyzed. Programs and techniques are developed, and preliminary calculated and experimental studies in some mechanisms of control processes characterized by a superhigh (detonation) velocity of energy release in impulse rocket engine engines are made. In particular, a process of intermittent detonation of propellant gas in a rocket-engine chamber is examined, and the influence of a form and geometrical dimensions of the nozzle on the characteristics of impulse engines is analyzed. Product Description popup.authors popup.nrat_date 2020-04-02 Close