Future progress in turbulent combustion research

Turbulent combustion research is projected to be an important area of resea rch well into the twenty-first century. Issues of current interest in turbu lent flame structure and computational prediction are outlined and forecast s are made for approaches that are likely to lead to significant advances. There is a mounting body of evidence that concepts and models derived from the laminar flamelet hypothesis are not valid over many of the conditions o f practical interest for both premixed and non-premixed systems. Approaches such as Conditional Moment Closure and Monte-Carlo simulation of the trans port equation for the probability density function are considered to have t he most promise for pollutant prediction in non-premixed systems. Large Edd y Simulation may be necessary for non-stationary premixed problems and for bluff-body and swirling flows. (C) 2000 Elsevier Science Ltd. All rights re served.