Title：Spatiotemporally resolved poly physics measurements in flows with phase change
Speaker：Prof. Christos N. Markides (Imperial College London, UK)
Invited by：Prof. Shuangfeng Wang, Prof. Zhen Cao
Time：November 9, 2026 (Monday), 10:00 AM – 12:00 PM
Venue：Meeting Room 105 of the Shaw Engineering Building, Wushan Campus
Organizer：School of Chemistry and Chemical Engineering, Key Laboratory of Heat Mass Transfer and Low Carbon Conversion, Ministry of Education
Biography
Christos Markides is Professor of Clean Energy Technologies and Head of the Clean Energy Processes Laboratory at Imperial College London. He is also, amongst other, Editor in Chief of journal Applied Thermal Engineering and founding Editor in Chief of new journal AI Thermal Fluids.
He specialises in applied thermodynamics, fluid flow and heat/mass transfer processes in high performance devices, technologies and systems for energy recovery, conversion or storage, with a particular interest in the recovery and utilisation of solar, renewable and waste heat. He has authored >470 articles on these topics, that have attracted >24,000 citations (h index = 81).
He has won multiple awards, most recently IChemE’s Global ‘Clean Energy Medal’ in 2025, and received Imperial College President’s Awards for Research Excellence in 2018. He is the also founding Director and CEO of Imperial spin out company Solar Flow.
Abstract
Phase change is encountered in many important industrial processes and systems. Despite the numerous experimental studies of relevant flows, the availability of spatiotemporally resolved simultaneous information on the underlying physical phenomena remains limited due to the challenges in performing such measurements.
These flows present the experimentalist with unique challenges, such as restricted (often sub mm) fluid domains with moving and complex interfaces, across which phases have large property changes. Experimental techniques based on optical measurement principles can be applied, but further development is necessary for reliable data to be obtained. Once developed, these techniques can provide information with high spatiotemporal resolution on important scalar and vector fields in relevant flows, as well as on interfacial characteristics and dynamics.
In this talk, we will present recent efforts to develop and apply a range of infrared, laser based and other optical diagnostic techniques to flows with phase change and reaction. We will cover the deployment of simultaneous techniques for the generation of new multiphysics and multiscale information, and discuss challenges faced when attempting such measurements. This information is enabling an increasingly complete fundamental understanding of related phenomena, and the improved design of relevant devices, technologies and systems.
Announced by School of Chemistry and Chemical Engineering.