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STUDENTS
Current Ph.D. students
Aycil Cesmelioglu. Flow in porous media. Research partially funded by NSF grant.
Prince Chidyagwai. Multiphysics problem. Research partially funded by NSF grant.
Sevtap Osizik, Ph.D. student at Middle East Technical University, Turkey. A posteriori error estimation.
Kun Liu. Study of uncertainty.
Christina Ho. Study of multiphase multicomponent flow.
Toni Tullius
Current undergraduate students
Yuekai Sun. Research funded by a Brown Undergraduate Research Internship and a NSF grant.
Past Ph.D. students
Qi Mi. PhD "Modeling The Wound Healing In Necrotizing Enterocolitis And Diabetic Foot Ulcer". Graduation 2007.
Joint supervision with David Swigon. Research partially funded by NIH grant.
Currently assistant professor in the School of Health and Medicine at University of Pittsburgh.
Yekaterina Epshteyn.
PhD "Hp Primal Discontinuous Galerkin Finite Element Methods For Two-Phase Flow In Porous Media".
Graduation 2007. Research partially funded by NSF and NIH grants. Currently postdoctoral fellow at Carnegie Mellon University
(three year position funded by NSF). In 2007, Yekaterina was the most highly recruited graduate student in the department of
Mathematics at the University of Pittsburgh.
Songul Kaya.
PhD "Numerical Analysis of a Variational Multiscale Method". Graduation 2004. Joint supervision with William Layton.
Winner of the 2004 Hales Distinguished Research Award for the best doctoral dissertation.
Currently, associate professor at Middle East Technical University, Turkey.
Past M.S. students
Ahmet Izmirlioglu. Master thesis Numerical and theoretical studies of high order methods. Graduation 2008.
Michael Chiacchiero. Master thesis "Efficient PETSc Solvers for Discontinuous Galerkin Methods Applied to Elliptic Problems". Graduation 2007.
Past undergraduate students
William Klieber. Bachelor of Philosophy thesis
"Numerical Simulations of Two-Phase Flow", 2006.
Research funded by CDRF (Spring 2004) and a Brackenridge Fellowship (Summer 2004). Currently, graduate student
in Computer Science department at Carnegie Mellon University.
RESEARCH INTERESTS
Numerical Analysis of Discontinuous Galerkin (DG) Finite Element Methods:
I am mostly interested in the primal DG methods such as NIPG, SIPG or IIPG.
Elliptic equations with discontinuous coefficients
Parabolic equations: with or without convection term, with degenerate diffusion
Linear equations: elasticity, quasi-static and dynamic viscoelasticity equations, acoustic and elastic wave problem
Nonlinear equations: Navier-Stokes equations, miscible displacement, two-phase flow, three-phase flow, nonlinear non-Fickian diffusion in viscoelastic polymers
A posteriori error estimation
Slope limiters on unstructured nonconforming meshes
Multiphase Flow: Simulations and Analysis
Two-phase flow: Sequential approach v. fully coupled approach, mesh and time adaptivity, DG methods, 2D/3D simulations, gravity, well models.
Three-phase flow
Incompressible Flow: Simulations and Analysis
Stokes equations, Navier-Stokes equations, subgrid eddy viscosity turbulence model, DG method and classical finite element methods (FEM).
Multi-numerics and/or Multi-physics Approach
Coupling of Stokes and Darcy using DG
Coupling of steady-state Navier-Stokes and Darcy using DG
Coupling of time-dependent Navier-Stokes and Darcy using DG
Coupling of time-dependent Navier-Stokes and Darcy using FEM
Coupling of DG and MFE for single phase flow (elliptic problem)
Coupling of DG with MFE for coupled Stokes and Darcy
Coupling of DG with FEM for coupled steady-state Navier-Stokes and Darcy
Medical Applications
Inflammation and sepsis: Center for Inflammation and Regenerative Modeling
Modeling of cell migration in Necrotizing Enterocolitis
Modeling of binding of LPS with TLR4 and signaling cascade
Miscible Displacement Problem
Convergence of backward Euler in time with high order DG in space
Convergence of DG in time with mixed finite element (MFE) in space
Numerical simulation for unstable flow
Other Applications
Single phase flow: highly discontinuous permeability, fractures
Acoustic wave propagation: DG, MFE
Optical tomography inverse problem: DG
EDITORIAL BOARD
Advances in Water Resources
CURRENT COLLABORATORS
Ivo Babuska, University of Texas at Austin
Yekaterina Epshteyn, Carnegie Mellon University
Vivette Girault, Laboratoire Jacques-Louis Lions, Universite Paris VI
Johnny Guzman, Brown University
Jennifer Proft, University of Texas at Austin
Yoram Vodovotz, University of Pittsburgh
Noel Walkington, Carnegie Mellon University
Useful Links
IMA
MathSciNet
NA Digest
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