Numerical analysis of transient flow through a spool valve (modeling of transient characteristic in high reynolds number flow)

Toshiyuki Hayase, Yupeng Xia, Satoru Hayashi

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, a transient flow in a spool valve has been studied via numerical analysis. First, a numerical procedure is developed for non-uniform grid systems. A consistent formulation of the QUICK scheme is derived for non-uniform rectangular grid systems. A transient flow field was then investigated for the condition with several values of the spool stroke and a large pressure difference between upstream and downstream boundaries. The computational result was used to obtain a mathematical model for the spool valve flow transient in high Reynolds number condition of practical importance. Unsteady characteristics of the axial flow force acting on the spool valve was investigated based on the pressure and shearing stress distribution of the computational result. Prediction of the unsteady flow force based on the momentum theory was examined using the computational result.

Original languageEnglish
Pages (from-to)724-731
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume64
Issue number619
DOIs
Publication statusPublished - 1998

Keywords

  • Fluid power system
  • Fluid transients
  • Numerical analysis
  • Quick scheme
  • Spool valve
  • Time constant
  • Unsteady flow force

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

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