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POSTDOCTORAL FELLOW
Jennifer Young. Mathematical modeling of intestinal edema using a poroelastic inhomogeneous model. In progress.
STUDENTS
Ph.D. students
Jizhou Li. In progress.
Kun Liu. Study of uncertainty. In progress.
Shirin Sardar. In progress.
Xin Yang. In progress.
Sevtap Ozisik. Ph.D. 2012 from Middle East Technical University, Turkey.
"Fully Computable Convergence Analysis of Discontinuous Galerkin Finite Element Approximation with an Arbirtrary Number of Levels of Hanging Nodes.
Aycil Cesmelioglu. PhD 2010. "Complex Flow and Transport Phenomena in Porous Media". Research partially funded by NSF grant. Aycil is currently a Postdoctoral Associate at the Institute for Mathematics and its Applications.
Prince Chidyagwai. PhD 2010. "Coupling Surface Flow with Porous Media Flow". Research partially funded by NSF grant. Prince is currently an Assistant Professor of Research at Temple University.
Qi Mi. PhD 2007. "Modeling The Wound Healing In Necrotizing Enterocolitis And Diabetic Foot Ulcer".
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 2007. "Hp Primal Discontinuous Galerkin Finite Element Methods For Two-Phase Flow In Porous Media".
Research partially funded by NSF and NIH grants. Currently, assistant professor the department of Mathematics at University of Utah.
Songul Kaya.
PhD 2004. "Numerical Analysis of a Variational Multiscale Method". 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.
Master students
Toni Tullius. M.A. 2011. "Accelerated Discontinuous Galerkin Solvers with the Chebyshev Iterative Method on the Graphics Processing Unit". Joint supervision with Tim Warburton.
Kun Liu. M.A. 2010. "Discontinuous Galerkin Methods for Elliptic Partial Differential Equations with Random Coefficients".
Christina Ho. M.A. 2010. "Discontinuous Galerkin Formulation for Multi-component Multiphase Flow". Currently at El Paso company in Houston.
Ahmet Izmirlioglu. M.S. 2008. "Numerical and theoretical studies of high order methods".
Michael Chiacchiero. M.S. 2007. "Efficient PETSc Solvers for Discontinuous Galerkin Methods Applied to Elliptic Problems".
Currently math professor at Edison State College.
Undergraduate students
Joey Huchette. 2011. Research funded by NHARP.
Yichen Lu. 2011. Research funded by NHARP.
John Vogelgesang. 2011. Research funded by NHARP.
Yuekai Sun. 2009. Research funded by a Brown Undergraduate Research Internship and a NSF grant. Yuekai is currently a Master student at Stanford University.
William Klieber. Bachelor of Philosophy thesis, 2006.
"Numerical Simulations of Two-Phase Flow".
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 top
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
Modeling of intestinal edema
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 top
Advances in Water Resources
International Journal of Computer Mathematics
SIAM Journal on Numerical Analysis
CURRENT COLLABORATORS
Ivo Babuska, University of Texas at Austin
Vivette Girault, Laboratoire Jacques-Louis Lions, Universite Paris VI
Johnny Guzman, Brown University
Guido Kanschat, Texas A&M University
Ilya Mishev, ExxonMobil
Jennifer Proft, University of Texas at Austin
Yoram Vodovotz, University of Pittsburgh
Noel Walkington, Carnegie Mellon University
Thomas Wihler, University of Bern
Useful Links
IMA
MathSciNet
NA Digest
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