Simulation of three-dimensional unsteady flow in hydraulic pumps

Bart P.M. van Esch

doi:10.3990/1.9789036510172

Simulation of three-dimensional unsteady flow in hydraulic pumps

Bart P.M. van Esch

Faculty of Engineering Technology

Research output: Thesis › PhD Thesis - Research UT, graduation UT

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Abstract

In this thesis it is shown that the flow in hydraulic pumps of the radial and mixedflow type, operating at conditions not too far from design point, can be considered as an incompressible potential flow, where the influence of viscosity is restricted to thin boundary layers, wakes and mixing areas. A three-dimensional method for unsteady flow based on this model yields good results. In order to predict the efficiency of pumps, additional models to quantify the viscous losses can be employed successfully. Thus reads the overall conclusion which can be drawn from the investigation presented in this thesis.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	University of Twente
Supervisors/Advisors	Brouwers, J.J.H., Supervisor Jonker, Jan B., Supervisor
Award date	25 Sept 1997
Place of Publication	Enschede
Publisher	University of Twente
Print ISBNs	90-365-1017-1
DOIs	https://doi.org/10.3990/1.9789036510172
Publication status	Published - 25 Sept 1997

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PhD thesis B.P.M. van EschFinal published version, 1.39 MB

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title = "Simulation of three-dimensional unsteady flow in hydraulic pumps",

abstract = "In this thesis it is shown that the flow in hydraulic pumps of the radial and mixedflow type, operating at conditions not too far from design point, can be considered as an incompressible potential flow, where the influence of viscosity is restricted to thin boundary layers, wakes and mixing areas. A three-dimensional method for unsteady flow based on this model yields good results. In order to predict the efficiency of pumps, additional models to quantify the viscous losses can be employed successfully. Thus reads the overall conclusion which can be drawn from the investigation presented in this thesis.",

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AU - van Esch, Bart P.M.

PY - 1997/9/25

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N2 - In this thesis it is shown that the flow in hydraulic pumps of the radial and mixedflow type, operating at conditions not too far from design point, can be considered as an incompressible potential flow, where the influence of viscosity is restricted to thin boundary layers, wakes and mixing areas. A three-dimensional method for unsteady flow based on this model yields good results. In order to predict the efficiency of pumps, additional models to quantify the viscous losses can be employed successfully. Thus reads the overall conclusion which can be drawn from the investigation presented in this thesis.

AB - In this thesis it is shown that the flow in hydraulic pumps of the radial and mixedflow type, operating at conditions not too far from design point, can be considered as an incompressible potential flow, where the influence of viscosity is restricted to thin boundary layers, wakes and mixing areas. A three-dimensional method for unsteady flow based on this model yields good results. In order to predict the efficiency of pumps, additional models to quantify the viscous losses can be employed successfully. Thus reads the overall conclusion which can be drawn from the investigation presented in this thesis.

U2 - 10.3990/1.9789036510172

DO - 10.3990/1.9789036510172

M3 - PhD Thesis - Research UT, graduation UT

SN - 90-365-1017-1

PB - University of Twente

CY - Enschede

ER -

Simulation of three-dimensional unsteady flow in hydraulic pumps

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