Browsing by Author "Bohdanov, Mykola"

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    Finite Difference Metod for Calculating of the Gas Flow in a Subsonic Gas Ejector
    (Національний авіаційний університет, 2015-08-15) Kapitanchuk, Kostiantyn; Grekov, Pavlo; Bohdanov, Mykola; Nikitina, Galina; Капітанчук, Костянтин Іванович
    Describe analysis of eddy viscosity actual mathematical models for numerical simulation a reversal gas flow in the subsonic gas ejector. Considered advantages and disadvantages each of it. Proposed use method of finite elements for provides viscous gas flow calculation of gas ejectors
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    Research of exhaust-screen devices for jet-engine
    (Національний авіаційний університет, 2016-08-19) Kapitanchuk, Kostiantyn; Bohdanov, Mykola; Grekov, Pavlo; Капітанчук, Костянтин Іванович
    The article addresses scientific issues of design of exhaust screens as the most common and reliable method of protecting aircraft from guided infrared homing head missiles and surface-to-air missile systems. The array of experiments was conducted for different types of jet engines, all of which achieve forward thrust from the principle of jet propulsion: turbojet, turbofan, turboprop, and ramjet. Using non-axial flow turbines result in a drop of thrust power. For purposes of reducing energy loss and achieving less field flow fractionation, static exhaust blades should be used.