205 citations · 618 across the 13 of their papers we have counts for
10 papers · 1 filter
Effects of fuel and soot concentrations on the inception and development of contrails
Amitesh Roy, Rajat Sawanni, Yash T. Rajan +5
Fundamental questions related to the roles of fuel type, combustion parameters, and turbulence transport interactions in the inception and growth of contrails have remained intract…
How "mixing" affects propagation and structure of intensely turbulent, lean, hydrogen-air premixed flames
Yuvraj, Hong G. Im, Swetaprovo Chaudhuri
Understanding how intrinsically fast hydrogen-air premixed flames can be rendered much faster in turbulence is crucial for systematically developing hydrogen-based gas turbines and…
Mean-field synchronization model of turbulent thermoacoustic transitions
Samarjeet Singh, Amitesh Roy, Jayesh M. Dhadphale +2
Thermoacoustic instabilities observed in turbulent combustion systems have disastrous consequences and are notoriously challenging to model, predict and control. Here, we introduce…
Turbulent flame speed based on the mass flow rate: theory and DNS
Swetaprovo Chaudhuri, Bruno Savard
Starting with an integral formulation of mass flow rate through an ensemble of isotherms constituting a statistically planar, turbulent premixed flame, a scaling for the correspond…
Mean-field synchronization model for open-loop, swirl controlled thermoacoustic system
Samarjeet Singh, Ankit Kumar Dutta, Jayesh M. Dhadphale +3
Open-loop control is known to be an effective strategy for controlling self-excited thermoacoustic oscillations in turbulent combustors. In this study, we investigate the suppressi…
Penetration and Secondary Atomization of Droplets Impacted on Wet Facemasks
Sombuddha Bagchi, Saptarshi Basu, Swetaprovo Chaudhuri +1
Face covering, commonly known as facemask, is considered to be one of the most effective Personal Protective Equipments (PPEs) to reduce transmissions of pathogens through respirat…
Local flame displacement speeds of hydrogen-air premixed flames in moderate to intense turbulence
Yuvraj, Wonsik Song, Himanshu Dave +2
Comprehensive knowledge of local flame displacement speed, , in turbulent premixed flames is crucial towards the design and development of hydrogen fuelled next-generation eng…
Modeling ambient temperature and relative humidity sensitivity of respiratory droplets and their role in Covid-19 outbreaks
Swetaprovo Chaudhuri, Saptarshi Basu, Prasenjit Kabi +2
One of the many unresolved questions that revolves around the Covid-19 pandemic is whether local outbreaks can depend on ambient conditions like temperature and relative humidity.…
Flame dynamics during intermittency and secondary bifurcation to longitudinal thermoacoustic instability in a swirl-stabilized annular combustor
Amitesh Roy, Samarjeet Singh, Asalatha Nair +2
In this experimental study on a laboratory-scale turbulent annular combustor with sixteen swirl-stabilized burners, we study the flame-flame and flame-acoustic interactions during…
Turbulent Flame Speed Scaling for Expanding Flames with Markstein Diffusion Considerations
Swetaprovo Chaudhuri, Fujia Wu, Chung K. Law
In this work we clarify the role of Markstein diffusivity on turbulent flame speed and it's scaling, from analysis and experimental measurements on constant-pressure expanding flam…