Lulu Tian is a PhD student in Numerical Analysis and Computational Mechanics group, University of Twente. Her research focuses on hyperbolic-elliptic PDE, a mixed problem, related with Riemann solver and HLL scheme. She is also interested in Discontinuous Galerkin Finite Element Methods, in particular for higher order equations. Supervisor is Prof.Jaap van der vegt. She got her Master's degree at the faculty of Computational Mathematics at University of Science and Technology of China.