Simulation of gas-liquid two-phase flow based on the Riemann problem

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dc.contributor.author Touma, Rony
dc.contributor.author Zeidan, Dia
dc.date.accessioned 2018-09-06T12:40:40Z
dc.date.available 2018-09-06T12:40:40Z
dc.date.copyright 2012 en_US
dc.date.issued 2018-09-06
dc.identifier.uri http://hdl.handle.net/10725/8431
dc.description.abstract This contribution report on recent scientific methodologies concerning compressible gas-liquid two-phase mixture. Within this context, a one-dimensional set of three partial differential equations that takes account of the velocity nonequilibrium between the two phases is used. Motivated by the hyperbolicity and conservativity features of these equations, a closed-form theoretical solution has provided key insights into the Riemann problem for the gas-liquid two-phase mixture. In addition to that, the proposed theoretical solution, that is an exact Riemann solver, calculates the entire wave structure including the middle states of the mixture and phases of the flow. To this end, the exact Riemann solver guarantees that the system of partial differential equations is independent of the type of the numerical technique used to validate it. Consequently, the model equations are solved numerically using Godunov methods of the upwind-type based upon the proposed exact Riemann solver. Sample academic simulations are performed and validated against analytical observations for the gas-liquid two-phase mixture. Through these simulations, we compare the predicted results with other numerical methods such as the Riemann-free solvers. Excellent agreement is observed between the analytical and numerical simulations. en_US
dc.language.iso en en_US
dc.title Simulation of gas-liquid two-phase flow based on the Riemann problem en_US
dc.type Conference Paper / Proceeding en_US
dc.author.school SAS en_US
dc.author.idnumber 200502835 en_US
dc.author.department Computer Science and Mathematics en_US
dc.description.embargo N/A en_US
dc.keywords Multiphase flows en_US
dc.keywords Finite volume methods en_US
dc.keywords Public policy and governance en_US
dc.keywords Partial differential equations en_US
dc.keywords Computational fluid dynamics en_US
dc.identifier.doi https://doi.org/10.1063/1.4757444 en_US
dc.identifier.ctation Zeidan, D., & Touma, R. (2012, September). Simulation of gas-liquid two-phase flow based on the Riemann problem. In AIP Conference Proceedings (Vol. 1482, No. 1, pp. 91-95). AIP. en_US
dc.author.email rony.touma@lau.edu.lb en_US
dc.conference.pages 91-95
dc.conference.place Kuala Lumpur, Malaysia en_US
dc.conference.title AIP Conference Proceedings en_US
dc.identifier.tou http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php en_US
dc.identifier.url https://aip.scitation.org/doi/abs/10.1063/1.4757444 en_US
dc.publication.date 2012 en_US
dc.volume 1482 en_US
dc.author.affiliation Lebanese American University en_US

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