- This event has passed.
MAE Seminar: “Modeling Aerosol Filtration at Micro- and Macro-Scales”
February 25 @ 10:00 am - 11:00 am
This talk presents an overview of our ongoing research on developing micro- and macro-scale models for studying aerosol filtration. The presentation starts by discussing ways to create three-dimensional geometries that resemble the microstructure of a fibrous filter, and continues to show how such geometries can be used to simulate the impact of particle loading on the pressure drop and collection efficiency of an electrostatically charged filter. Next, the concept of macroscale modeling is presented and its pros and cons are discussed in terms of simulation time and accuracy. The presentation concludes by a brief discussion about the more challenging case of droplet–gas or droplet–liquid filtration.
Hooman Tafreshi is an Associate Professor in the Mechanical and Aerospace Engineering Department at NC State University. He also serves as the Associate Director for Research at the Nonwovens Institute. Prior to joining NC State, Dr. Tafreshi was with the Mechanical and Nuclear Engineering Department at Virginia Commonwealth University from 2007 to 2020, where he worked as Assistant, Associate, and Qimonda Full professor. Dr. Tafreshi’s research is on multiphase fluids and particle/droplet transport through fibrous materials with applications in filtration and separation sciences. Dr. Tafreshi is an active member of the American Filtration and Separation (AFS) Society and also serves on the editorial board of Separation and Purification Technology journal.
Hooman obtained his BS (1995) and MS (1997) from KN Toosi University of Technology and Tehran University in Iran, respectively. He then travelled to Finland to obtain his PhD (1999) from Lappeenranta University of Technology. This was followed by a postdoctoral position at University of Milan, Italy, from 2000 to 2001. Hooman moved to the US in late 2001 to join the Nonwovens Cooperative Research Center at the College of Textile, NCSU, where he served as a Postdoctoral Research Associate (2001-2004) and then later as a Research Assistant Professor (2004-2007).