Taylor dispersion, or shear-flow enhanceddiffusion, is ubiquitous in various areas involving transport phenomena. Despite numerous dedicated publications following the pioneering work of G.I. Taylor of 1953, none of such publications have appeared in the field of combustion, until recently. In this talk, i will present recent studies dedicated (mainly) to shear-flow enhanced diffusion in combust…
Title:Intermolecular interactions, methods and applicationsSpeaker: Professor Peifeng SuXiamen UniversityTime: August 30th 10:00 AMLocation:B-515,Lee Shau Kee Building of Science and TechnologyAbstract:Energy decomposition analysis method is the one of the theoretical methods for the quantitative study of intermolecular interactions. The method has been widely used in material chemistry, medi.…
The past decades have witnessed a dramatic increase in the power density of combustion- powered energy systems such as advanced light- to heavy-duty engines, gas turbines and rocket engines. With high power density, the thermodynamic environment experienced by the working fluid can easily exceed its critical point, entering trans- and super-critical regimes where real fluid effects on thermochem…
报告人单位:The Hong Kong Polytechnic University报告时间:2023年8月18日(周五) 10:00 AM 北京时间(UTC+8)
From milk homogenization to whitecaps in the ocean, fragmentation of bubbles and droplets in turbulence constitutes one of the most basic and practically important processes in turbulent multiphase flows. Most phenomenological models and simulations for this problem were developed based on the classical Kolmogorov-Hinze framework, even though some of the key assumptions and hypotheses in this fr…
lce crystals are found in clouds below freezing points. They are anisotropic, and over a temperature range, they are shaped like very thin disks. I will discuss the motion of such crystals in a turbulent flow. I will first discuss the alignment of crystals in the flow, and show that at low to moderate turbulence energy dissipation rate,settling crystals align predominantly with their broad face …
报告人单位:Karlsruhe Institute of Technology报告时间:2022年10月6日(周四) 03:00 PM 北京时间(UTC+8)
The high temperature reactivity of metal/metal oxides are important in a wide variety of industrial applications including solar-thermal hydrogen generation,CO2 sequestering, chemical-looping combustion, and energetic materials, among others. In this seminar I will discuss probing the reactivity of nanometals and metal oxides, towards developing a conceptual picture of rate limiting and phenomen…