Experimental investigation of stratified combustion

In order to better understand the stratified combustion, the propagation of flame through stratified mixture field in laminar and turbulent flow conditions has been studied by using combined PIV/PLIF techniques. A great emphasis was placed on developing methods to improve the accuracy of local measurements of flame propagation. In particular, a new PIV approach has been developed to measure the local fresh gas velocity near preheat zone of flame front. To improve the resolution of measurement, the shape of interrogation window has been continuously modified based on the local flame topology and gas expansion effect. Statistical analysis of conditioned local measurements by the local equivalence ratio of flames allows the characterization of the properties of flame propagation subjected to the mixture stratification in laminar and turbulent flows, especially the highlight of the memory effect.

Autorentext

Dr. Saravanan Balusamy has received his PhD degree in Energy from INSA of Rouen in 2010. He has joined the University of Cambridge in 2011 as post doctoral research associate and has been working on the experimental investigation of coal particle combustion in oxyfuel condition and thermoacoustic instabilities in gas turbines.