Numerical Modelling of Transonic Two Phase Flow with Shock in Converging-Diverging NozzleDiverging Nozzle

Document Type : Research Article

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Abstract

In this work, the numerical solution for compressible, unsteady, inviscid, two-phase and transonic liquid-vapor mixture flow is investigated using Ros’s FDS time marching method. For space discretization, the fluid properties are extrapolated to the cell faces with the third order MUSCL algorithm of van Leer, and the time integration is done with the explicit two-step Lax-Wendroff method. In this study, the continuity, momentum and energy equations have been written in the fully conservative form and the properties of two-phase flow mixture in the quasi one-dimensional convergence-divergence nozzle have been investigated using the equilibrium thermodynamic model. The paper follows our earlier work, in which condensing transonic two-phase flow in a shock-free (no shock) converging-diverging nozzle was studied. The main goal of this article is to exhibit the two-phase flow with normal shock and to show the related physics (e.g. liquid phase evaporation via the shock) of the problem completely.

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References

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