数学讲坛
发布于:2017-12-29 10:15:06   |   作者:[学院] 数学学院   |   浏览次数:254
时间:15:00-16:00, January 3rd
地址:A1-407, Main Building
主办:数学学院
承办:数学学院
范围:全校

Title: Some advances on the algorithms development of the two-phase model for the EWOD with moving contact lines

 

Speaker: Xiaofeng Yang, University of South Carolina

 

Datetime: 15:00-16:00, January 3rd

 

Venue: A1-407, Main Building

 

 

Abstract:

Electrowetting-on-dielectric (EWOD) is a versatile tool in microfluidics/liquid lens because it enables control over fluid drop shape and flow by electrical signals alone. We consider the numerical approximations of the phase-field EWOD model that incorporates the variable densities, viscosities, moving contact line boundary conditions, electric displacement and charge densities. The model is a highly nonlinear, coupled system that consists of incompressible Navier-Stokes equations with the generalized Navier boundary condition, the Cahn-Hilliard equation in the conserved form, and the Maxwell equations. For some simplified case, we made some advances in developing efficient, unconditionally energy stable numerical schemes, in particular, linear and decoupled schemes. Some further discussions are aslo presented. 

 

Biographical Sketch:

Dr Yang got his Ph.D from Purdue University at 2007. He finished his postdoc at University of North Carolina at Chapel Hill at 2009, and started the assistant professorship at Univ of South Carolina since then. He is now the full professor of USC. His research includes the mathematical modelling, numerical analysis and simulations for complex fluids/soft matter. He published around 60 peer reviewed journal papers, including five ESI top 1% highly cited papers and one ESI top 0.1% hot paper. The total number of google citations are more than 1400 times. He had been invited to give more than 90 talks and seminars in many conferences, universities and institutes around the world.