思源讲堂第三十八期:Prof. Matthias Ihme,Assoc. Prof. Deanna A. Lacoste学术报告会
发布时间:2026-07-06   阅读:23

时间:2026年7月6日 9:00-11:00

地点:beat365中文官方网站 振华会议室

邀请人:齐飞 教授、夏溪 副教授(航空动力研究所)


报告题目:Connecting Micro-behavior and Macro-response in Supercritical Fluids with Ultrafast Coherent Measurements, Atomistic-scale Simulations, and Theoretical Analysis

报告人:Prof. Matthias Ihme(美国斯坦福大学)

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Biography

Matthias Ihme is Professor in the Department of Mechanical Engineering and (by courtesy) Energy Science and Engineering at Stanford, and the Department of Photon Science at SLAC National Accelerator Laboratory. His research interests are broadly on the computational modeling of reacting flows, the development of numerical methods, and the investigation of advanced energy conversion concepts and molecular processes. He is a recipient of the NSF CAREER Award, the ONR Young Investigator Award, the AFOSR Young Investigator Award, and the NASA Early Career Faculty Award.


Abstract

Supercritical fluids exhibit strong variations in thermodynamic response functions and transport properties, making them attractive for chemical processing, energy storage, and propulsion. The presentation will begin with an overview of supercritical fluid behavior, followed by a discussion of recent experimental progress enabled by advanced diagnostics, including coherent X-ray free-electron laser techniques. We will then discuss how these measurements offer new perspectives on the physical origins of anomalous thermodynamic response and transport behavior. Finally, the presentation will illustrate how these advances inform simulations and modeling strategies for engineering-relevant applications, including high-pressure fuel injection, supercritical mixing, and turbulent heat transfer.


报告题目:What does it take to develop commercial detonation engines?

报告人:Assoc. Prof. Deanna A. Lacoste(阿卜杜拉国王科技大学)

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Biography

Deanna Lacoste is an associate professor of mechanical engineering affiliated with the Clean Energy Research Platform at the King Abdullah University of Science and Technology (KAUST). Her research mainly focusses on plasma-assisted combustion, non-equilibrium plasma discharges at atmospheric pressure, control of flame dynamics, and detonation.


Abstract

While piston and gas turbine engines are still the main options for cars and planes, detonation engines might be the future of sustainable transportation.However, the development of efficient and reliable detonation engines is challenging. Those related to the stability and control of the detonation, as well as those related to the engine efficiency and fuel, would greatly benefit from predictive models and high-fidelity simulations of the detonation phenomena. A key step in this development is to validate the models against experimental data. In this context, our contribution is to propose new measurement strategies for the study of detonation waves, allowing one-to-one comparisons between experiments and numerical simulations. In this talk, our recent results will be presented as well as the main remaining challenges.




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