A comparison of mathematical formulations of the NavierStokes equations for modeling nonreacting flows in an axisymmetric dump combustor
Abstract
Three sets of mathematical formulations of the NavierStokes equations are used to predict the axisymmetric nonreactive laminar or turbulent recirculating flowfield within a cylindrical dump combustor. The study has given its main attention to the comparison of the numerical accuracy of all of the formulations which are cast into three categories in terms of streamfunction/vorticity, velocity/vorticity, and velocity/pressure. Computations have employed an adaptation of the LEE2/3 computer program in which the governing nonlinear, elliptic partial differential equations are derived in finite difference form and the kepsilon model is used for turbulence closure. An iterative solution procedure is used to solve these three sets of the finite difference form of the governing equations. The results obtained are compared with published experimental data.
 Publication:

AIAA, SAE, ASME, and ASEE, 26th Joint Propulsion Conference
 Pub Date:
 July 1990
 Bibcode:
 1990jpof.confS....L
 Keywords:

 Axisymmetric Flow;
 Computational Fluid Dynamics;
 Dump Combustors;
 Flow Distribution;
 NavierStokes Equation;
 Computerized Simulation;
 Finite Difference Theory;
 KEpsilon Turbulence Model;
 Laminar Flow;
 Partial Differential Equations;
 Turbulent Flow;
 Fluid Mechanics and Heat Transfer