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Proc. ASME. AJKFluids2019, Volume 3B: Fluid Applications and Systems, V03BT03A032, July 28–August 1, 2019
Paper No: AJKFluids2019-5274
... Abstract This paper presents an experimental work on dynamic characteristics of a cavitating inducer. In the present study, the focus is placed on the cavitation compliance K and the mass flow gain factor M, which are necessary for stability analysis of a propulsion system of liquid propellant...
Yushi Nakamura, Marek Lubieniecki, Kentarou Hayashi, Yutaka Kawata, Masahiro Miyabe, Claudio Lettieri
Proc. ASME. AJKFluids2019, Volume 3B: Fluid Applications and Systems, V03BT03A034, July 28–August 1, 2019
Paper No: AJKFluids2019-5371
... Abstract The purpose of this paper is to present optimization method of an inducer blade shape to improve its suction performance and clarify the relationship between pump performance and design parameters. In order to conduct the optimization process a response surface based optimization...
Proc. ASME. AJKFluids2019, Volume 3B: Fluid Applications and Systems, V03BT03A021, July 28–August 1, 2019
Paper No: AJKFluids2019-4970
... decreases when f is increased and the other two are fixed. To validate these theoretical results, “backflow vortex cavitation,” which occurs around the center of the backflow vortices on a rotating inducer as a representative of axial pumps or compressors, was observed. The backflow vortex cavitation is...
Proc. ASME. FEDSM2013, Volume 1B, Symposia: Fluid Machinery; Fluid Power; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Fundamental Issues and Perspectives in Fluid Mechanics, V01BT10A018, July 7–11, 2013
Paper No: FEDSM2013-16303
... The inducer has become an essential component of the modern turbopump. Many investigations have been performed to gain an understanding of the inducer’s adverse operational characteristics that can include fluctuating pressures, unsteady delivery flow and fluctuating loads that compromise...
Proc. ASME. FEDSM2010, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C, 517-521, August 1–5, 2010
Paper No: FEDSM-ICNMM2010-30198
... Magnetic driving pump low-NPSHR Impeller Inducer Numerical simulation A new magnetic driving pump with low-NPSHR had been developed to ensure leakage-free for transporting fluid. In hydraulic design, several common measures, according to the equation of cavitation, were applied to...
Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 267-275, August 2–6, 2009
Paper No: FEDSM2009-78254
... Inducer Internal flow Cavitation Laser Doppler velocimetry measurement Computational fluid dynamics The attachment of inducer upstream of main impeller is an effective method to improve the suction performance of turbopump. However, various types of cavitation instabilities are known...
Proc. ASME. FEDSM2007, Volume 2: Fora, Parts A and B, 893-898, July 30–August 2, 2007
Paper No: FEDSM2007-37438
... 26 03 2009 The attachment of inducer upstream of main impeller is an effective method to improve the suction performance of turbopumps. However, the various types of cavitation instabilities are known to occur even at the designed flow rate as well as in the partial flow rate...
Topics: Flow (Dynamics)
Proc. ASME. FEDSM2005, Volume 2: Fora, 587-590, June 19–23, 2005
Paper No: FEDSM2005-77414
... CFD cavitation inducer turbopump rocket engine CFD simulations were applied to cavitating flows around an inducer of a liquid rocket engine turbopump. Unsteady simulations were performed for the full 3D model of an inducer using a cavitation model. The inducer has been tested with...
Proc. ASME. FEDSM2005, Volume 1: Symposia, Parts A and B, 1147-1191, June 19–23, 2005
Paper No: FEDSM2005-77084
... Cavitation Inducer CFD VOF model The paper presents full 3D numerical simulations and experimental investigations of the cavitating flow through three axial inducers. These inducers are identified by the blades leading edge angle at the periphery β 1T = 8°, 10°, 13° and are thus noted...