Simulation of gaseous fuel jet combustion process in the OpenFOAM package

Abstract

The general mathematical formulation of describing flows with chemical reactions problem includes mass conservation, momentum, energy and concentrations equations for each chemical substance, supplemented by the state equation and other thermodynamic relations. Chemical kinetics, through the heat of reactions, relates the concentrations of various substances to the energy equation. In many combustion systems, it is the chemical kinetics that determines the characteristic spatial and temporal scales of the equations to be solved. In this paper, we consider the problem of spray combustion of gaseous simple hydrocarbon fuel in a cylindrical channel. Mathematical modeling was carried out within the framework of the open package OpenFOAMv7, and the visualization of numerical results was carried out using Paraview 5.6. Deep understanding and tuning of a simple gaseous reaction scheme in the OpenFOAM package when modeling reacting flows is the goal of this work. It is shown that the CFD package used makes it possible to successfully simulate this class of flows.