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

Numerical Simulations of a Low Mach Number Model in Heat Exchanger
G. Faccanoni, C. Galusinski, M. Rafiou
Abstract:
This work is devoted to the numerical simulation of liquid-vapour flows in nuclear framework. We investigate a simplified model, named Lmnc (for Low Mach Nuclear Core), describing the evolution of the coolant within a core of a Pressurized Water Reactor. This model, proposed in previous works, corresponds to the zero Mach asymptotic where the dilation of the fluid depends simply on the density of the fluid, function of the enthalpy. The goal of this work is to introduce a numerical approximation, validated on a reference test problem solved analytically, able to solve the 3D configuration.
Keywords:
Low Mach number, Pressurized Water Reactor, Liquid-Vapor Phase transition

Fulltext: PDF DOI: https://doi.org/10.14311/TPFM.2018.010

In Proceedings Topical Problems of Fluid Mechanics 2018, Prague, 2018 Edited by David Šimurda and Tomáš Bodnár, pp. 73-82 ISBN 978-80-87012-65-9 (Print) ISSN 2336-5781 (Print)