Enhanced Numerical Solvers and Adaptive Methods in PDEs and CFD

The recent developments in the research area of numerical methods for partial differential equations (PDEs) and computational fluid dynamics (CFD) have shown a strong focus on enhancing the accuracy, stability, and efficiency of numerical solvers. There is a notable trend towards the integration of advanced numerical techniques such as exponential integrators, discontinuous Galerkin methods, and mixed finite element methods with innovative approaches like neural operators and multi-objective optimization for automatic solver discovery. These advancements are particularly aimed at addressing complex problems in porous media, traffic flow modeling, and thermo/poro-viscoelasticity, among others. The field is also witnessing a shift towards more robust and adaptive methods capable of handling uncertainties and transient faults in high-performance computing environments. Additionally, there is a growing interest in the development of parallel-in-time methods and efficient preconditioning techniques to tackle large-scale problems. Notably, the integration of machine learning with traditional numerical methods is emerging as a promising direction for optimizing solver performance and adaptability.

Noteworthy Papers:

  • The integration of neural operators with iterative solvers for automatic discovery of optimal meta-solvers.
  • The development of a second-generation convexification method for solving coefficient inverse problems in epidemiology.
  • The proposal of a novel traffic flow model based on the urban-porous city concept, integrating non-stationary convection-diffusion-reaction PDEs with Darcy-Brinkman-Forchheimer systems.

Sources

Exponential integrator Fourier Galerkin methods for semilinear parabolic equations

A nonconservative macroscopic traffic flow model in a two-dimensional urban-porous city

Unified discontinuous Galerkin analysis of a thermo/poro-viscoelasticity model

A posteriori error analysis of a mixed FEM for the coupled Brinkman-Forchheimer/Darcy problem

Automatic discovery of optimal meta-solvers via multi-objective optimization

The Second Generation of the Convexification Method for a Coefficient Inverse Problem of the Epidemiology

PACE Solver Description: Exact Solution of the One-sided Crossing Minimization Problem by the MPPEG Team

Energy-stable mixed finite element methods for the Rosensweig ferrofluid flow model

Fractures and thin heterogeneities as Robin-Wentzell interface conditions

Resilience Against Soft Faults through Adaptivity in Spectral Deferred Correction

A Parareal exponential integrator finite element method for linear parabolic equations

A note on indefinite matrix splitting and preconditioning

Efficient parallel inversion of ParaOpt preconditioners

Recovery Techniques for Finite Element Methods

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