30-09-2014, 11:44 AM
Abstracts: A new combustor concept referred as the trapped vortex combustor (TVC) employs a vortex that is trapped inside a cavity to stabilize the flame. The cavity is formed between two axis-symmetric disks mounted in tandem. TVC offers many advantages when compared to conventional swirl stabilizers. In the present work, numerical investigation of cold flow (non-reacting) through 3D trapped vortex combustor will be performed. Commercial CFD software Fluent has been used for this study. The other main objective of our study will be to evaluate the performance and combustion stability of trapped vortex combustor when the fuel-air ratios are varied. This will in turn lead to change in diameter of air injection holes present at the cavity walls. For different fuel-air ratios, diameters will be calculated from one dimensional continuity equation.