Simulation of three-demensional unsteady flow in hydraulic pumps

Bartholomeus Petrus Maria van Esch

Research output: ThesisPhD Thesis - Research UT, graduation UTAcademic

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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 languageEnglish
Awarding Institution
  • University of Twente
Supervisors/Advisors
  • Brouwers, J.J.H., Supervisor
  • Jonker, Jan B., Supervisor
Award date25 Sep 1997
Place of PublicationEnschede
Publisher
Print ISBNs9789036510172
Publication statusPublished - 25 Sep 1997

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unsteady flow
pump
hydraulics
incompressible flow
potential flow
simulation
viscosity
boundary layer
thesis
loss
method

Cite this

van Esch, B. P. M. (1997). Simulation of three-demensional unsteady flow in hydraulic pumps. Enschede: Universiteit Twente.
van Esch, Bartholomeus Petrus Maria. / Simulation of three-demensional unsteady flow in hydraulic pumps. Enschede : Universiteit Twente, 1997. 147 p.
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van Esch, BPM 1997, 'Simulation of three-demensional unsteady flow in hydraulic pumps', University of Twente, Enschede.

Simulation of three-demensional unsteady flow in hydraulic pumps. / van Esch, Bartholomeus Petrus Maria.

Enschede : Universiteit Twente, 1997. 147 p.

Research output: ThesisPhD Thesis - Research UT, graduation UTAcademic

TY - THES

T1 - Simulation of three-demensional unsteady flow in hydraulic pumps

AU - van Esch, Bartholomeus Petrus Maria

PY - 1997/9/25

Y1 - 1997/9/25

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.

M3 - PhD Thesis - Research UT, graduation UT

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van Esch BPM. Simulation of three-demensional unsteady flow in hydraulic pumps. Enschede: Universiteit Twente, 1997. 147 p.