个人简介
Prof. Gangtao LIANG
Prof. Gangtao LIANG
Dalian University of Technology, China
标题: Computational Fluid Mechanics and Interfacial Phenomena in Multi-Droplet Impact on Liquid Film
摘要: 
As a common phenomenon widely witnessed in nature, droplet impact has attracted much more attention because of its complicated mechanisms associated with manifold outcomes after impact. This includes rain droplets impact on ground, leaf, rock, lake surface and wings of aircraft, and sprinkling irrigation, as well as ink blot and coffee stain induced by impact. But, the research on the droplet impact is mostly advanced because of its significant importance in industrial applications, such as spray cooling, horizontal-tube falling film evaporation, internal combustion engine, inkjet printing and fire extinguishing. In practical technologies, a thin liquid film will be built up after liquid droplets impact on a heated solid wall, which implies that the subsequent droplets will interact with liquid film rather than solid. On the other hand, in practical view, the impingement is represented by multi-droplet impact instead of single-droplet, latter of which is however an ideal case. This seminar will introduce a three-dimensional numerical model with an implement of a random disturbance subjected to Gaussian distribution, which was developed in Dr. Liang’s research group recently. The seminar covers both interfacial phenomena and heat transfer processes during simultaneous, successive and non-simultaneous impingement of droplets on the liquid film. Research on multi-droplet impact is hopefully to fill the gap between a mass of studies on single droplet impact and the above practical applications.
简介: 
Prof. Liang received his B.Eng. in 2009 and Ph.D. in 2014 from Dalian University of Technology, where he remained as a faculty member. He undertook his postdoctoral research from 2015 to 2017 at Purdue University Boiling and Two-Phase Flow Laboratory (PU-BTPFL), where he was dedicated to experimental investigation and theoretical modeling of two-phase flow and heat transfer. He was appointed to Associate Professor in advance in 2016 because of his outstanding work in the areas of heat transfer and fluid mechanics. His primary research interests are two-phase flow and heat transfer, covering droplets impingement, spray cooling, micro-channel flow boiling and condensation, horizontal-tube falling film evaporation, and boiling enhancement. He has published over 80 papers, including more than 50 archival journal papers in Int. J. Heat Mass Transfer, Int. Commun. Heat Mass Transfer, Exp. Therm. Fluid Sci., Acta Mech., Numer. Heat Transfer, and Ind. Eng. Chem. Res. He has been internationally recognized for his great contributions to the droplets impact research and a series of high-quality review papers for two-phase heat transfer topics. He is currently Advisory Board Member of Heat Transfer Division in Cambridge Scholars Publishing, International Advisory Board Member of Thermal Science Journal, and Editorial Board Member of Fluid Dynamics & Materials Processing. He also serves as an outstanding reviewer for many international journals.