Analysis of rotary engine combustion processes based on unsteady, three-dimensional computationsA new computer code was developed for predicting the turbulent and chemically reacting flows with sprays occurring inside of a stratified charge rotary engine. The solution procedure is based on an Eulerian Lagrangian approach where the unsteady, three-dimensional Navier-Stokes equations for a perfect gas mixture with variable properties are solved in generalized, Eulerian coordinates on a moving grid by making use of an implicit finite volume, Steger-Warming flux vector splitting scheme, and the liquid phase equations are solved in Lagrangian coordinates. Both the details of the numerical algorithm and the finite difference predictions of the combustor flow field during the opening of exhaust and/or intake, and also during fuel vaporization and combustion, are presented.
Document ID
19900035182
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Raju, M. S. (NASA Lewis Research Center; Sverdrup Technology, Inc. Cleveland, OH, United States)
Willis, E. A. (NASA Lewis Research Center Cleveland, OH, United States)