University of Illinois Urbana-Champaign

Water table use in studies of pressure waves in fluid power systems

Holt, C. F.; Labus, T. J.; Robertson, J. M.

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https://hdl.handle.net/2142/112065

Description

Title
Water table use in studies of pressure waves in fluid power systems
Author(s)
  • Holt, C. F.
  • Labus, T. J.
  • Robertson, J. M.
Issue Date
1971-04
Keyword(s)
  • Water Tables
  • Pressure Waves
  • Fluid-power Systems
Abstract
The water table analogy, well known in its use to indicate wave occurrences in gas dynamics, is applied to corresponding studies of pressure waves in the liquid-filled cylinders of positive displacement pumps. In this form of the analogy, the surface waves on a shallow sheet of water are similar to the pressure waves associated with the compressibility of the liquid used to transfer energy in the power system. A general review indicates about the same imperfections of this application as with the gas-dynamic version but with an additional complication arising from uncertainties in the formulation of the liquid equation of state. Some applications of the analogy for studying two-dimensional pressure-wave behavior – as formation of plane wave, reflection from various-shaped piston heads – are indicated. One significant difficulty with this application of the analogy is noted as resulting from the closeness of fluid and wave-travel velocities on the table.
Publisher
Department of Theoretical and Applied Mechanics. College of Engineering. University of Illinois at Urbana-Champaign
Series/Report Name or Number
  • TAM R 339
  • 1971-6003
ISSN
0073-5264
Type of Resource
text
Language
eng
Permalink
http://hdl.handle.net/2142/112065
Sponsor(s)/Grant Number(s)
Sundstrand Aviation Division of Sundstrand Corporation, Rockford, Illinois, 71/04
Copyright and License Information
Copyright 1971 Board of Trustees of the University of Illinois

Owning Collections

Technical Reports - Theoretical and Applied Mechanics (TAM) PRIMARY
TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.