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Ph .D.(Engg.): Explicit Filtering LES of turbulent swirling flows and multi-regime hydrogen flames

STC Seminar Hall, Dept. of Aerospace Engineering

The need to decarbonize power generation and aviation has established hydrogen as a promising fuel for next generation gas turbine combustion systems. However, its high chemical reactivity significantly increases the propensity for autoignition and flashback under lean premixed conditions commonly used in hydrocarbon combustion systems. New combustor concepts based on direct fuel injection address these […]

MTech(Res) : Design of an Ex-Situ Gas Sampling Layout with Various Probes and Their Performance Assessment for Accurate Emission Measurements

STC Conference Hall, Ground Floor, Department of Aerospace Engineering

Chemical kinetic mechanism development and validation require quantitative species data from canonical flames. Burner-stabilized pre -mixed flames provide a stationary post-flame region directly comparable to one-dimensional kinetic simulations. Ex-situ gas sampling delivers absolute CO and NO mole fractions from this region. The extraction step introduces two coupled biases. Reactions can continue inside the probe, and […]

Multiphase Reactive Flows: From Dust Explosions to Metal-Fueled Detonations

Auditorium (AE 005), Department of Aerospace Engineering

. Explosions in coal mines, metal-processing facilities, and other industrial settings occur with alarming regularity, while reactive metal particles are being considered for energy-storage and propulsion applications. Despite a long history of research and its importance to safety and propulsion applications, the physical mechanisms that govern the ignition, combustion, and detonation of reactive particles remain […]

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