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Splitting methods for relaxation two-phase flow models

Splitting methods for relaxation two-phase flow models

Kategori
Vitenskapelig artikkel
Sammendrag
A model for two-phase pipeline flow is presented, with evaporation and condensation modelled using a relaxation source term based on statistical rate theory. The model is solved numerically using a Godunov splitting scheme, making it possible to solve the hyperbolic fluid-mechanic equation system and the relaxation term separately. The hyperbolic equation system is solved using the multi-stage (MUSTA) finite volume scheme. The stiff relaxation term is solved using two approaches: one based on the Backward Euler method, and one using a time-asymptotic scheme. The results from these two methods are presented and compared for a CO2 pipeline depressurisation case. Copyright © 2013 Inderscience Enterprises Ltd.
Oppdragsgiver
  • Research Council of Norway (RCN) / 189978
Språk
Engelsk
Forfatter(e)
  • Halvor Lund
  • Peder Aursand
Institusjon(er)
  • Norges teknisk-naturvitenskapelige universitet
  • SINTEF Energi AS / Gassteknologi
År
Publisert i
International Journal of Materials Engineering Innovation
ISSN
1757-2754
Forlag
InderScience Publishers
Årgang
4
Hefte nr.
2
Side(r)
117 - 131