报告题目:Development and validation of OpenFOAM for safety related reactive flows（用于安全相关反应流的OpenFOAM的开发和验证）
报告人：JenniferWen（英国萨里大学教授）
报告时间：2023年10月14日 星期六16:00—18:30
会议方式：腾讯会议（会议号:494-9175-0952）/29号楼3楼会议室
欢迎广大师生踊跃参加!
机械与汽车工程学院
2023年10月9日
报告摘要：
The presentation will start with an overview of the systematic approach my team has followed since 2008 to develop, validate and apply the in-house modified versions of OpenFOAM for safety-related reactive flows. Our effort has a particular focus on the development of physics-based sub-models to advance the modelling capabilities. For applications related to fire, explosions and/or deflagration to detonation transition (DDT), our activities have spanned across conventional gaseous, liquid, and solid fuels to syngas, hydrogen, and lithium-ion batteries. The physical scales of our simulations range from millimetres to hundred meters. As such, we use detailed physics-based models within the context of LES and DNS as well as some simplified approaches depending on the scope of the projects and aspirations of the researchers. For model validation, we use a wide range of experimental data from the literature as well as collaborators in both academia and industry.
The presentation will include snapshots of our simulations in the following topics:
-Ignited releases of hydrogen jets at atmospheric and cryogenic conditions
-DDT in hydrogen-air mixtures with and without concentration gradients
-Vapour cloud explosions from instantaneous large-scale releases of liquid hydrogen
-Sparks and fires induced by failure of lithium-ion batteries
-Whirling flames in wildland fires
报告人简介：
Jennifer Wen is currently a professor and doctoral supervisor in the School of Mechanical Engineering Sciences, University of Surrey. Prior to this, she was a Professor at the University of Warwick for nearly 10 years, where she established and led Warwick FIRE, a multidisciplinary research laboratory for both fundamental and applied research in fire, explosions and other safety-related reactive and non-reactive flows. Jennifer also held positions at Computational Dynamics Limited (founding vendor of STAR-CCM), British Gas plc, South Bank University and Kingston University London, where she was a full professor since 2000 and Head of Research for Engineering from 1999-2012.
Jennifer is a Fellow of the Institution of Mechanical Engineers. She is Vice-Chairman of the International Association for Fire Safety Science (IAFSS) and chairs the IAFSS Research Sub-Committee. She is a Steering Committee Member of the British Section of the Combustion Institute, UK Explosion Liaison Group, and member and Sub-Task Leader for the European Hydrogen Safety Panel (EHSP), established by the Clean Hydrogen Joint Undertaking of the European Commission. Jennifer currently sits on the Editorial Board of the Proceedings of the Combustion Institute.
Jennifer’s research covers a wide range of topics including fire dynamics, flame spread, façade fires, battery fires, glazing behaviour in fires, and gas explosions. Her expertise is primarily in computational fluid dynamics (CFD) modelling of fire and explosions. She has applied fundamental combustion science to study a wide range of fire scenarios including liquid pool and gas burner fires, single and multi-phase jet fires, flame spread over solid and liquid fuels, façade fires, and fires in buildings and tunnels. Her expertise further extends to fire and explosion safety in emerging energy technologies, especially hydrogen and batteries.
