Combustion noise is becoming increasingly important as a major noise source in
aeroengines and ground based gas turbines. This is partially because advances in design …

Accurate prediction of limit cycle oscillations resulting from combustion instability has been a
long-standing challenge. The present work uses a coupled approach to predict the limit …

Numerical simulations were used to characterise the non-linear response of a turbulent
premixed flame to acoustic velocity fluctuations. The test flame simulated was the bluff body …

The validity of the commonly used flame marker for heat release rate (HRR) visualization,
namely the rate of the reaction OH+ CH 2 O⇔ HCO+ H 2 O is re-examined. This is done …

Adding dissociated ammonia (NH 3) is an effective way to improve the combustion
properties of NH 3. Research on the laminar burning velocity of partially dissociated NH 3 …

The present work demonstrates the feasibility of heat release rate imaging using the laser-
induced fluorescence (LIF) of atomic hydrogen (H-atom) and formaldehyde (CH 2 O) in …

Numerical studies on 1-D, non-sooting counterflow diffusion flames were performed to
determine the precision with which the total heat release rate can be calculated using light …

The unstrained and strained flamelet closures for filtered reaction rate in large eddy
simulation (LES) of premixed flames are studied. The required sub-grid scale (SGS) PDF in …

The ignition characteristics of a hot turbulent jet impinging on a flat plate surrounded by an
ultra-lean premixed H 2/air was studied both experimentally and numerically. The hot …

While lean combustion in gas turbines is known to reduce NOx, it makes combustors more
prone to thermo-acoustic instabilities, which can lead to deterioration in engine …