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Cavitation in Turbopumps—Part 1 [PDF]
Journal of Basic Engineering, 1962 A free-streamline flow through a cascade of semi-infinite flat plates is taken as a simplified model of the cavitation process in a helical inducer pump. The length and thickness of the resulting cavity is determined as a function of blade geometry and cavitation parameter.
Stripling, L. B., Acosta, A. J.
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Journal of the Global Power and Propulsion Society, 2017 This study experimentally examines how the non-dimensional thermal parameter and Reynolds number affect cavitation instability onset in a turbopump inducer using water.
Junho Kim, Seung Jin Song
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Nihon Kikai Gakkai ronbunshu, 2014 Dynamic response of the fluid force acting on an axially oscillating balance piston was numerically investigated. The balance piston of a rocket engine turbopump was modeled and forced to oscillate in the axial direction.
Toshiya KIMURA +4 more
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Nihon Kikai Gakkai ronbunshu, 2019 This study has developed a model for stability analysis in a balance piston mechanism. The balance piston mechanism is employed to suppress an axial vibration in the turbopump.
Shota YABUI +2 more
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Turbopump Parametric Modelling and Reliability Assessment for Reusable Rocket Engine Applications
AerospaceThe development of modern reusable launchers, such as the Themis project with its LOX/LCH4 Prometheus engine, CALLISTO—a reusable VTVL-launcher first-stage demonstrator with a LOX/LH2 RSR2 engine, and SpaceX’s Falcon 9 with its Merlin 1D engine ...
Mateusz T. Gulczyński +3 more
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Analysis of Acoustic Cavitation Surge in a Rocket Engine Turbopump
International Journal of Rotating Machinery, 2010 In a liquid rocket engine, cavitation in an inducer of a turbopump sometimes causes instability phenomena when the inducer is operated at low inlet pressure.
Hideaki Nanri +3 more
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Experimental study on stability of axial direction of Balance Piston mechanism
Nihon Kikai Gakkai ronbunshu, 2019 Vibration problems often occur in development of rocket engine turbopump, and an axial vibration is one of these problems. Rocket turbopumps often use balance piston mechanism (BP) which is a self-balancing system in order to balance the large axial ...
Hiromichi HIRAKI +2 more
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LUMEN Turbopump: Preliminary Thermal Model
Journal of Physics: Conference Series, 2021 Abstract The DLR LUMEN (Liquid Upper stage deMonstrator ENgine) rocket engine comprises of two separate turbopumps, one each for Liquid Oxygen (LOX) and Liquified Natural Gas (LNG) supply. In both turbopumps, an identical bearing block separates the pump section from the turbine section.
Saraf, Anirudh Mukund +2 more
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Numerical Prediction of Internal Flows in He/LOx Seals for Liquid Rocket Engine Cryogenic Turbopumps
Applied Sciences, 2022 Cryogenic turbopumps are used in high-performance, lightweight liquid rocket engines for space applications. The development of bearings and shaft seals for cryogenic turbopumps requires detailed characterization of the internal flow, taking into account
Lorenzo Maritano +5 more
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Choice of gas temperature at the turbopump turbine inlet
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2022 The article considers some issues of choosing the gas temperature at the inlet of a liquid rocket engine turbopump turbine. The turbine is one of the key elements of the engine and its operability depends on the gas temperature.
A. V. Ivanov
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