A shock-capturing approach for simulating gravity flows, pressurized flows and the simultaneous occurrence of gravity and pressurized flows

A. S. León, M. S. Ghidaoui, A. R. Schmidt, M. H. García

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a shock-capturing model for simulating gravity flows, pressurized flows and the simultaneous occurrence of gravity and pressurized flows (mixed flows) in which free surface and pressurized flows are treated separately. Unlike other models that cannot simulate mixed flows when the free surface flow is supercritical, the proposed approach is able to simulate mixed flows without restriction of the type of flow in the free surface region. The accuracy and robustness of the proposed model is investigated using two test cases. The results show that the proposed model is robust, it can accurately describe complex flow features-such as positive and negative open channel-pressurized flow interfaces, interface reversals, and open-channel surges, and it can simulate negative pressures in the pressurized flow regime.

Original languageEnglish (US)
Title of host publicationBHR Group - Surge Analysis - System Design, Simulation, Monitoring and Control, 10th International Conference on Pressure Surges
Pages489-502
Number of pages14
StatePublished - Nov 20 2008
Event10th BHR Group International Conference in the Pressure Surges Series - Edinburgh, United Kingdom
Duration: May 14 2008May 16 2008

Publication series

NameBHR Group - Surge Analysis - System Design, Simulation, Monitoring and Control, 10th International Conference on Pressure Surges

Other

Other10th BHR Group International Conference in the Pressure Surges Series
CountryUnited Kingdom
CityEdinburgh
Period5/14/085/16/08

Keywords

  • Mixed flow
  • Open channel flow
  • Pressurized flow
  • Sewers
  • Transient flows
  • Unsteady flows

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering

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