The Chinese University of Hong Kong
Department of Computer Science and Engineering


Title: Burning Solid and Turbulent Liquids in Physically-based Simulation
Date: February 8, 2017 (Wednesday)
Time: 3:00 p.m. - 4:00 p.m.
Venue: Room 1009, William M. W. Mong Engineering Building (ERB 1009),
The Chinese University of Hong Kong,
Shatin, N.T.
Speaker: Prof. Jian Zhu
Assistant Professor
Guangdong University of Technology



Dynamic fluid simulation, such as fire flames, curly rising smokes and turbulent water, can produce stunning visual effects. Physically based methods are currently the most widely used techniques for generating such dynamic effects. However, numerically solving the fluid governing equations on grid is computationally expensive. Moreover, there are other challenges to fire and liquid simulations, including that the current physically based fire model has not addressed the decomposition process of the solid objects under combustion. Rich fluid details, such as splash, foam, bubbles, are mostly hard to reproduce.

In this talk, Dr. Zhu will present the two research projects aimed to tackle the challenging in dynamics simulation. The first one is the novel combustion model that realistically simulates the decomposition process of burning solids at interactive speeds. A hybrid grid structure is used to represent the burning process in a compact framework. Specifically, an improved burning surface update scheme based on level set and a novel burning surface visualization method are proposed to produce convincing results, and acceleration techniques are employed to increase the simulation speed. Further, we work on the hybrid multi-cale framework to simulate the turbulent wake, which is produced when fluids flow around internal obstacles, or object moves inside the fluid (i.e. a boat sails over the sea), to enrich liquid surface details. The key idea is to integrate vortex particle method into the PIC/FLIP framework to efficiently simulate vortex shedding phenomena.



Dr. Zhu is an assistant professor at the Guangdong University of Technology (GDUT), supported by the A Hundred Young Research Talents Program. He received his B.Sc. degree in Mathematics from Sun Yat-sen University in 2005, and his PhD degree in Software Engineering from the University of Macau in 2013. From 2013-2014, he worked as a postdoctoral research fellow at the University of Macau. His research interests include image-based rendering, physically based simulation/animation, and graphics hardware acceleration. Dr Zhu has received the best paper awards in Chinagraph 2010 and 2012, excellent student scholarships, outstanding graduate with first honor, and the third-level of Macau Natural Science Award in 2012.


Enquiries: Mr Calvin Tsang at tel 3943 8440

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