Abstract: Aerosol is a system of tiny liquid or solid particles uniformly distributed in a finely divided state through a gas, usually air. Aerosol particles suspended in the gas could be dust, mists, or fumes, and are often less than 100 mm in diameter if it is spherical.  The physical and chemical properties of aerosol particles and the interactions between the particle and the gas medium determine the dynamics, kinetics, and transport of aerosol particles in the gas. In this talk, I will briefly introduce several aerosol measurement technologies, designed by mechanical engineers, and used to characterize aerosol particles including impactors, and the differential mobility analyzer (DMA). I will also share common aerosol control techniques to enhance engineering control for indoor air quality such as filtration and electrostatic precipitator. Finally, I will share the current state of aerosol transport in human lung systems from different engineering approaches including computational fluid-particle dynamic (CFPD) modeling.

Biography: Hui Ouyang is an Assistant Professor of Mechanical Engineering at the University of Texas at Dallas. Dr. Ouyang earned her Ph.D. from the University of Minnesota at Twin-cities (Aerosol Science and Technology) and her MS from the University of Akron (Microelectromechanical systems (MEMS) lab) and her BS (Fluid Machinery) from Xi’an Jiaotong University. She is the recipient of the Doctoral dissertation Fellowship award in 2014 at UMN. She has taught both ME undergraduate and graduate courses. She is the recipient of the Outstanding Faculty Teaching Award in 2019 at UTD. Her research is in the field of aerosol science and technology with a focus on aerosol dynamics, measurements, and control. Her current areas of interest include aerosol measurements/control and aerosol transport in health-related systems including the human lung for disease control (bioaerosol) and for drug delivery (treatment).