Research work

Characterization of combustion dynamics in a Trapped Vortex Combustor for various cavity sizing's.

Intermittent burst oscillations leading to lean blowout in a trapped vortex combustor: Experiments and modelling

 Altering cavity size of a trapped vortex combustor obtained 70% reduction in instability amplitude.

Active control by harmonic forcing cold cavity flow leads to reduction in instability amplitude. Asynchronous and synchronous quenching were studied in detail using synchronization theory approach.

Various non linear transitions by changing burner positions.

Acoustic perturbation of flame longitudinally and transversely

PIV visualization

PLIF Visualization

Oscillator equation to model synchronization phenomena in active control of cavity.

Reduced order model  for shedding impingement on cavity wall and causing instability and altered time scale of vortex leads to various non-linear transition. 

Flow and Thermal Characteristics of Jet Impingement on a Dimple Plate Using Large Eddy Simulation

Flow and Thermal Characteristics of Jet Impingement on a Flat Plate Using Large Eddy Simulation, Comparing various sub-grid LES models