A finite volume model for mixed surface-pressurized flows in drainage systems

Arturo S. León, Mohamed S. Ghidaoui, Arthur R. Schmidt, Marcelo H. García

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

Abstract

This paper presents a Finite Volume (FV) scheme for simulating free surface flows, pressurized flows and their simultaneous occurrence (mixed flows). The free surface region is modelled using the 1D Saint-Venant equations, the pressurised region is modelled using the classical 1D compressible waterhammer theory and the interface is modelled by enforcing mass, momentum and energy relations at a shock. The proposed approach is able to simulate mixed flows without restriction of the type of flow in the free surface region. The results show that the proposed model is robust and able to (i) accurately describe complex flow features - such as positive and negative open channel-pressurized flow interfaces, interface reversals, and open-channel surges, and (ii) simulate negative pressures in the pressurized flow regime (not presented in this paper due to space limitations).

Original languageEnglish (US)
Title of host publicationWorld Environmental and Water Resources Congress 2008
Subtitle of host publicationAhupua'a - Proceedings of the World Environmental and Water Resources Congress 2008
DOIs
StatePublished - Dec 1 2008
EventWorld Environmental and Water Resources Congress 2008: Ahupua'a - Honolulu, HI, United States
Duration: May 12 2008May 16 2008

Publication series

NameWorld Environmental and Water Resources Congress 2008: Ahupua'a - Proceedings of the World Environmental and Water Resources Congress 2008
Volume316

Other

OtherWorld Environmental and Water Resources Congress 2008: Ahupua'a
CountryUnited States
CityHonolulu, HI
Period5/12/085/16/08

Keywords

  • Drainage
  • Free surfaces
  • Pressurized flow

ASJC Scopus subject areas

  • Management, Monitoring, Policy and Law
  • Water Science and Technology
  • Pollution

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  • Cite this

    León, A. S., Ghidaoui, M. S., Schmidt, A. R., & García, M. H. (2008). A finite volume model for mixed surface-pressurized flows in drainage systems. In World Environmental and Water Resources Congress 2008: Ahupua'a - Proceedings of the World Environmental and Water Resources Congress 2008 (World Environmental and Water Resources Congress 2008: Ahupua'a - Proceedings of the World Environmental and Water Resources Congress 2008; Vol. 316). https://doi.org/10.1061/40976(316)671