Simulation of swirling flow in a model combustor using a locally-coupled numerical method

Abstract

Numerical results for swirling flows obtained by a point-wise locally-implicit scheme are here reported. Computations are presented for incompressible laminar flow inside a model combustor. Governing equations are written in terms of the so-called primitive variables and are recast into a general form. Finite-differencing is obtained by means of the widely-used control-volume approach. The discretized momentum equations are applied to each cell face and then, together with the mass-continuity equation, are simultaneously solved by means of a direct method in each computational node. Extension to complete heat transfer analysis is commented upon. Flow pattern and mass residual behavior are reported.