Scientific Computing and Numerical Analysis

Research efforts of the Scientific Computing and Numerical Analysis Group

Month: February 2022

Research Reports 2018

2018

Towards an efficient finite element method for the integral fractional Laplacian on polygonal domains. M Ainsworth, C Glusa

Hybrid Finite Element–Spectral Method for the Fractional Laplacian: Approximation Theory and Efficient Solver.  M Ainsworth, C Glusa

The Resiliency of Multilevel Methods on Next Generation Computing Platforms: Probabilistic Model and Its Analysis.  CA Glusa, M Ainsworth

A view from ORNL: Scientific data research opportunities in the big data age.  S Klasky, M Wolf, M Ainsworth, C Atkins, J Choi, G Eisenhauer, B Geveci, et al.

Fully computable a posteriori error bounds for hybridizable discontinuous Galerkin finite element approximations.  M Ainsworth, G Fu

Coupling exascale multiphysics applications: Methods and lessons learned. JY Choi, CS Chang, J Dominski, S Klasky, G Merlo, E Suchyta, et al.

Multilevel techniques for compression and reduction of scientific data—the univariate case.  M Ainsworth, O Tugluk, B Whitney, S Klasky

Bernstein-Bezier bases for tetrahedral finite elements, Mark Ainsworth and Guosheng Fu.

Implicit-explicit local discontinuous Galerkin methods with generalized alternating numerical fluxes for convection-diffusion problems.  Haijin Wang, Qiang Zhang, Chi-Wang Shu.

The L2-norm stability analysis of Runge-Kutta discontinuous Galerkin methods for linear hyperbolic equations.  Yuan Xu, Qiang Zhang, Chi-Wang Shu, and Haijin Wang.

Well-balanced finite volume schemes for hydrodynamic equations with general free energy.  Jose A. Carrillo, Serafim Kalliadasis, Sergio P. Perez, and Chi-Wang Shu.

Strong stability of explicit Runge-Kutta Time Discretizations.  Zheng Sun and Chi-Wang Shu.

An entropy stable high-order discontinuous Galerkin method for cross-diffusion in gradient flow systems.  Zheng Sun, Jose A. Carrillo and Chi-Wang Shu.

High order finite difference Hermite WENO schemes for the Hamilton-Jacobi equations on unstructured meshes.  Feng Zheng, Chi-Wang Shu and Jianxian Qiu.

A third-order unconditionally positivity-preserving scheme for production-destruction equations with applications to non-equilibrium flows.  Jantao Huang, Weifeng Zhao, and Chi-Wang Shu.

Completed Repeated Richarson Extrapolation for compressible fluid flows.  Nicholas Dicati Pereira da Silva, Carlos Henrique Marchi, Luciano, Kiyoshi, Rafael Brandao de Rezende Borges, Guilherme Bertoldo, Chi-Wang Shu.

Provably Positive High-Order Schemes for IdealMagnetohydrodynamics: Analysis on General Meshes. Kailiang Wu and Chi-Wang Shu.

A new type of multi-resolution WENO schemes with increasingly higher order of accuracy.  Jun Zhu and Chi-Wang Shu.

Locally divergence-free spectral-DG methods for idealmagnetohydrodynamic equations on cylindrical coordinates.  Yong Liu, Qingyuan  Liu, Yuan Liu, Chi-Wang Shu and Mengping Zhang.

Superconvergence of energy-conserving discontinuous Galerkin methods for linear hyperbolic equations.  Young Liu, Chi-Wang Shu and Mengping Zhang.

Positivity-preserving time discretizations for production-destruction equations with applications to non-equilibrium flows.  Juntao Huang and Chi-Wang Shu.

An energy-conserving ultra-weak discontinuous Galerkin Method for the generalized Korteweg-De Vries Equation.  Guosheng Fu and Chi-Wang Shu.

Optimal energy-conserving discontinuous Galerkin methods for linear symmetric hyperbolic systems.  Guosheng Fu and Chi-Wang Shu.

Modeling and simulation of urban air pollution from the dispersion of vehicle exhaust: A continuum modeling approach.  Liangze Yang, Tingting Li, S.C. Wong, Chi-Wang Shu, Mengping Zhang.

Numerical solutions of stochastic PDEs driven by arbitrary type of noise. Tianheng Chen, Boris Rozovskii and Chi-Wang Shu.

Stability analysis and errorestimates of arbitrary Lagragian-Eulerian discontinuous Galerkin method coupled with Runge-Kutta time-marching for linear conservation laws. Lingling Zhou, Yinhua Xia and Chi Wang Shu.

Provably positive discontinuous Galerkin methods for multidimensional ideal magnetohydrodynamics.  Kailiang Wu and Chi-Wang Shu.

Local discontinuous Galerkin methods with explicit-implicit-null time discretizations for solving nonlinear diffusion problems.  Haijin Wang, Qiang Zhang, Shiping Wang, and Chi-Wang Shu.

Discontinuous Galerkin methods for Maxwell’s equations in Drude metamaterials on unstructured meshes.  Cengke Shi, Lichun Li and Chi-Wang Shu.

Conservative high order positivity-preserving discontinuous Galerkin methods for linear hyperbolic and radiative transfer equations. Dan Ling, Juan Cheng, Chi-Wang Shu.

Third order implicit-explicit Runge-Kutta local discontinuous Galerkin methods with suitable boundary treatment for convection-diffusion problems with Dirichlet boundary conditions.  Haijin Wang, Qiang Zhang, Chi-Wang Shu.

Report Archives

2019

New stability estimates for an unfitted finite element method for two-phase Stokes problem.  E Cáceres, J Guzmán, M Olshanskii

L2-Error estimates for H(div)-conforming schemes applied to a linearised model of inviscid incompressible flow.  G Barrenechea, E Burman, J Guzmàn

Stability and error analysis of a splitting method using Robin-Robin coupling applied to a fluid-structure interaction problem.  E Burman, R Durst, J Guzman

Overcoming the curse of dimensionality for some Hamilton–Jacobi partial differential equations via neural network architectures J Darbon, GP Langlois, T Meng

Optimal trajectories of a UAV base station using Lagrangian mechanics
Coupechoux, J Darbon, JM Kélif, M Sigelle

On decomposition models in imaging sciences and multi-time Hamilton-Jacobi partial differential equations.  J Darbon, T Meng

High order conservative Lagrangian schemes for one-dimensional radiative hydrodynamics equations in the equilibrium limit.  Juan Cheng, Chi-Wang Shu and Peng Song.

An ultra-weak DG method with IMEX time-marching for generalized stochastic KdV equations.  Yunzhang Li, Chi-Wang Shu, Shanjian Tang.

On moving mesh WENO schemes with characteristic boundary conditions for Hamilton_Jacobi equations.  Yue Li, Juan Cheng, Yinhua Xia and Chi-Wang Shu.

A new type of third-order finite volume multi-resolution WENO schemes on tetrahedral meshes.  Jun Zhu and Chi-Wang Shu.

Error estimate of the fourth Runge-Kutta Discontinuous Galerkin Methods for Linear Hyperbolic Equations.  Yuan Xu, Chi-Wang Shu and Qiang Zhang.

Entropy Symmetrization and High-Order Accurate Entropy Stable Numberical Schemes for Relativistic MHD Equations.  Kailiang Wu and Chi-Wang Shu.

Optimal Error Estimates of the Semidiscrete Discontinuous Galerkin Methods for Two Dimentional Hyperbolic Equations on Cartesian Meshes using Pk Elements.  Young Liu, Chi-Wang Shu, and Mengping Zhang.

High-order Runge-Kutta discontinuous Galerkin methods with a new type of multi-resolution WENO limiters.  Jun Zhu, Jianxian Qiu, and Chi-Wang Shu.

Assessment of aeroacoustic resolution properties of DC schemes and comparison with DRP schemes.  Ziqiang Chang, Jinwei Fang, Chi-Wang Shu and Mengping Zhang.

Review of entropy stable discontinuous Galerkin methods for Systems of conservation laws on unstructured simplex meshes.  Tianheng Chen and Chi-Wang Shu.

A local discontinuous Galerkin method for nonlinear parabolic SPDEs.  Yuzhang Li, Chi-Wang Shu, Shanjian Tang.

Convergence to steady-state solutions of the new type of high-order multi-resolution WENO schemes: a numerical study.  Jun Zu and Chi-Wang Shu.

A brief review on the convergence to steady state solutions of Euler equations with high-order WENO schemes.  Shuhai Zhang, Jun Zhu, and Chi-Wang Shu.

An ultraweak-local discontinuous Galerkin method for PDEs with high order spatial derivatives.  Qi Tao, Yan Xu, Chi-Wang Shu.

High order arbitrary Lagrangian-Eulerian finite difference WENO scheme for Hamilton-Jacobi equations.  Yue Li, Juan Cheng, Yinhua Xia and Chi-Wang Shu.

A new type of multi-resolution WENO schemes with increasingly higher order of accuracy on triangular meshes.  Jun Zhu and Chi-Wang Shu.

A Discontinuous Galerkin Method for Stochastic Conservation Laws.  Yunzhang Li, Chi-Wang Shu, and Shanjian Tang.

A dynamic continuum modeling approach to the spatial analysis of air quality and housing location choice in a polycentric city. Liangze Yang, S. C. Wong, Mengping Zhang and Chi-Wang Shu.

Certified offline-free reduced basis (COFRB) methods for stochastic differential equations driven by arbitrary types of noise.  Yong Liu, Tianheng Chen, Yanlai Chen and Chi-Wang Shu.

Analysis of optimal superconvergence of an ultraweak-local discontinuous Galerkin method for a time dependent fourth-order equation.  Yong Liu, Qi Tao and Chi-Wang Shu.

Past Events

Past Events

Frontiers in Applied and Computational Mathematics

Participants from the Frontiers in Applied and Computational Mathematics Conference gather together for a group photograph in ICERM

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