Introduction

This tutorial examines the mixing of chemical species and the combustion of a gaseous fuel. A cylindrical combustor burning methane (CH $_4$) in air is studied using the eddy-dissipation model in ANSYS FLUENT.

This tutorial demonstrates how to do the following:

• Enable physical models, select material properties, and define boundary conditions for a turbulent flow with chemical species mixing and reaction.

• Initiate and solve the combustion simulation using the pressure-based solver.

• Compare the results computed with constant and variable specific heat.

• Examine the reacting flow results using graphics.

• Predict thermal and prompt NOx production.

• Use custom field functions to compute NO parts per million.