
Investigation of flow instabilities in high-speed impinging jets using dual-time velocity measurements
July 16 @ 11:00 AM - 1:00 PM

Motivated by applications in the aerospace propulsion industry as well as other energy systems, the fundamental study of phase-locked shear-layer instabilities in high-speed impinging jets, has been of research interest for a long time. The study of instabilities is usually conducted with time derivatives of velocity field. However, time-resolved experimental data acquisition using particle image velocimetry (PIV) techniques has its challenges for high-speed flows due to the requirements of high spatial and temporal resolution. In this talk, I will introduce an alternate approach of utilizing time-unresolved dual-time PIV measurements for investigation of the flow instabilities in supersonic impinging jets and illustrate the valuable information about the flow dynamics that can be extracted using the same.
Speaker : Dr. Tushar Sikroria
Biography:
Tushar Sikroria obtained his B.Tech.-M.Tech. Dual Degree in Aerospace Engineering from IIT Kanpur, Uttar Pradesh, India, in 2013. Then he worked for more than two years in John F. Welch Technology Centre, General Electric (GE), Bangalore, India. Thereafter, he carried out research work as a Project Engineer in Propulsion Laboratory, IIT Kanpur, in 2016, and later went to pursue his doctoral study from the University of Melbourne, Australia. He was awarded PhD in Mechanical Engineering from the University of Melbourne, in December 2021. He pursued post-doctoral research in the Turbomachinery & Propulsion Department, von Karman Institute, Belgium and then joined IIT Kanpur as an Assistant Professor in the Department of Mechanical Engineering in January 2024.