Topical Problems of Fluid Mechanics


Institute of Thermomechanics AS CR, v.v.i.	CTU in Prague Faculty of Mech. Engineering Dept. Tech. Mathematics	MIO Université du Sud Toulon Var - AMU - CNRS - IRD	Czech Pilot centre ERCOFTAC

Simulation of Transonic Flow with a Non-Equilibrium Phase Change
Pátý M., Halama J.
Abstract:
The paper introduces a computationally undemanding model for numerical calculation of a steady transonic ow of wet steam with a non-equilibrium phase change. The basis of the model are Euler equations for one-phase compressible flow, supplemented with a method for calculation of steam wetness, which is then substituted into a modified ideal gas equation. The mathematical model is solved numerically using a finite volume method with an AUSM scheme. The presented method is applied to a 2D flow calculation in a Barschdorff nozzle and an axial turbine cascade. The results are shown along with a comparison to a more complex two-phase flow model
Keywords:
two-phase flow, non-equilibrium phase change, finite volume method, turbine cascade

Fulltext: PDF DOI: http://dx.doi.org/10.14311/TPFM.2016.021

In Proceedings Topical Problems of Fluid Mechanics 2016, Prague, 2016 Edited by David Šimurda and Tomáš Bodnár, pp. 157-160 ISBN 978-80-87012-58-1 (Print) ISSN 2336-5781 (Print)