Numerical investigation of the flow and flame structure in an axisymmetric trapped vortex combustor

► Flow structure inside the cavity is considerably different for various momentum flux ratio (MFR) cases. ► Volume expansion due to combustion is the cause for the multiple vortices in the cavity for MFR ∼ 0.82 and 1.8 cases. ► MFR ∼ 1.8 case resulted in higher values of reaction rate.