Controlling Combustion Dynamics in a Swirl Combustor via Spray Optimization

Fundamentals and Applications of Modern Flow Control

“…As noted earlier, all the three elements of AVF interactions can provide a mechanism for driving combustion instability (CI). (Coker et al, 2006;Lal et al, 2003b). Other mechanisms are also possible, such as droplet atomization and vaporization, interactions between multiple fuel injectors, etc.…”

“…Recent effort has also focused on developing and demonstrating alternate combustion systems that can achieve low emission over a wide range of fuel types without requiring an ACS. Studies (Becker and Hasse, 2003;Lal et al, 2003b) have demonstrated that with proper droplet size distribution and fl ow pattern it is possible to avoid combustion instability and also to modify the emission pattern. Concepts that combine rich-quench-lean-burn (RQL) with trapped vortex combustor (TVC) have demonstrated the potential for high-powered systems capable of delivering the design output without high emission and/or instability.…”