Numerical Treatment of Multi-phase Flow Equations with Chemistry and Stiff Source Terms

Document Type

Article

Publication Date

3-19-1998

Publication Title

Aerospace Science and Technology

Abstract

A computational model suitable for multiphase/multispecies flows has been developed. The source term containing the inter-phase interaction and species production/destruction terms can be numerically stiff, due to near-equilibrium chemistry, mass/momentum and energy exchange terms among phases. An Eulerian-Eulerian (E2) formulation for the conservation equations has been chosen. The chemistry model is described through a multi-step, finite-rate chemical kinetics model with third body reactions. The inviscid fluxes for the right and left states are evaluated using the Total Variation Diminishing (TVD) method. Lax-Friedrichs (LF) and Steger-Warming (SW) numerical fluxes are used to calculate the full flux in the gaseous and liquid phases, respectively. The TVD-LF-SW scheme proved to be robust and suitable for liquid rocket engine applications.

Volume

2

Issue

3

First Page

219

Last Page

229

DOI

https://doi.org/10.1016/S1270-9638(98)80055-2

ISSN

1270-9638

Rights

© 1998 Elsevier Masson SAS

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