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2013 年 08 月 21 日
Seminar - Draw Resistance of Cigarette and Effect of Non-isothermal Condition on Heterogeneous Flow in porous Media Pressure by Su Zhongdi and Yan Weiwei

Date:   21 August 2013 (Wednesday)

Time:   11:00 am – 12:00 pm

Venue:  EF305, The Hong Kong Polytechnic University

Abstract:

The draw resistance of cigarettes or the pressure drop of filter rods is a widespread and important concept both for product quality specifications and for analytical determinations by mechanical smoking. Three kinds of methods, theory, experiment and numerical simulation have been applied to focus on the investigation on measurement accuracy of draw resistance of cigarette and pressure drop of filter especially the flow problem of Critical flow orifice (CFO) and standard bar.

The thermal lattice Boltzmann method is implemented to investigate the effect of non-isothermal conditions on heterogeneous flow through three different biofilter models. The generalized Navier-Stokes model based on the Brinkman-Forchheimer-extended Darcy model is used to make several assumptions. The numerical results indicate that the non-isothermal conditions are helpful to the optimization of the biofilters performance.

Biosketch:

Su  Zhongdi, Professor  of China Jiliang University. The Xu Zhilun Award Winner of  National Excellent Mechanics Teacher by The Chinese Society of Mechanics, the executive director of Zhejiang Society of Mechanics. His main research directions: computational fluid mechanics and flowrate metrology. He has obtained several research grants by various funding agencies such as NSF of China, NSF of Zhejiang Province, General Administration of Quality Supervision, Inspection and Quarantine of China, Science and Technology Department of Zhejiang Province, and industrial companies. He has also published more than forty Journal and conference papers in these years and has supervised more than ten postgraduate students.

Yan Weiwei, joined the China Jiliang University as an assistant professor in 2011 and has been promoted to associate professor in 2013. Her main research interests focus on CFD, heat transfer, and cell adhesive dynamics, etc. Currently, she has been the PI of one NSF Youth Grant and CoI of three NSF grants in China. She has also published more than twenty journal and conference papers in recent years.