Chemically reacting axisymmetric flowfield prediction

A primitive pressure-velocity two-dimensional axisymmetric finite difference computer code is extensively modified to produce a turbulent reacting swirl flow computer code. Radiation heat transfer is simulated by way of a second-order flux method, appropriate to axisymmetric flows. Heat release information is obtained via a two-step global reaction mechanism, which includes prediction of local carbon monoxide levels and tempers local and global heat release because of incomplete combustion. The importance of heat release is realized when dealing with oxides of nitrogen which are extremely temperature sensitive. Results include velocity and temperature profiles, nitric oxide and carbon monoxide predictions, along with comparisons with experimental data and/or other predictions from the literature, for confined swirling reacting flows.