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Front Wave Prediction in Water Hammer Phenomena Involving Two-Phase Flows

[+] Author Affiliations
Alina Bogoi, Radu D. Rugescu

University Politehnica of Bucharest, Bucharest, Romania

Jean Marie Seynhaeve, Michel Giot

Université Catholique de Louvain, Louvain-la-Neuve, Belgium

Oliviu Sugar

Ecole de Technologie Superieure, Montreal, QC, Canada

Paper No. IMECE2013-65838, pp. V07AT08A049; 7 pages
  • ASME 2013 International Mechanical Engineering Congress and Exposition
  • Volume 7A: Fluids Engineering Systems and Technologies
  • San Diego, California, USA, November 15–21, 2013
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5631-4
  • Copyright © 2013 by ASME


A genuine mathematical model for one dimensional, unsteady, two phase (liquid-gas) flows is presented that intends to solve the complex problem of two phase behavior of fluids. The mechanism of the model describes the fluid flow characteristics of the mixture, supposing that the conditions for homogeneous vaporization are fulfilled and the condensate fraction of the composite fluid keeps constant. In particular, the equation of momentum conservation for the gas phase is derived from the Voinov equation. For its domain of validity (bubbly flows), the model is of hyperbolic type and can be written in the conservative form. The numerical results obtained for the water hammer phenomena show that the present work is able to supply accurate results, at least of the same degree of confidence as the results provided by an ordinary, commercial CFD code, still with a considerable reduction in computational time.

Copyright © 2013 by ASME



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