In this article, two-phase slug regime in a duct with rectangular cross-section is investigated numerically, using the volume of fluid (VOF) method. Equations of mass, momentum and advection of volume fraction are solved accompanying k-∈ realizable turbulence equations. To ensure the creditability, numerical results have been compared with experimental results using same geometry. With occurrence of instability in the entrance of duct, Kelvin-Helmholtz condition satisfies and with increasing instability, slug phenomenon occurs. With closing the cross-section of duct, slug causes pressure gradient in it. Trapped air behind a slug transfers the momentum and increases the kinetic energy of slug. In this research the kinetic energy of a slug is investigated.
The Investigation of the Kinetic Energy of Slug in a Horizontal Channel Using VOF Method
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Ashrafi, N, Ansari, MR, Chegini, A, & Sadeghi, A. "The Investigation of the Kinetic Energy of Slug in a Horizontal Channel Using VOF Method." Proceedings of the ASME 2018 International Mechanical Engineering Congress and Exposition. Volume 7: Fluids Engineering. Pittsburgh, Pennsylvania, USA. November 9–15, 2018. V007T09A008. ASME. https://doi.org/10.1115/IMECE2018-87108
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