An a posteriori parameter choice for Tikhonov regularization in the presence of modeling error
Applied Numerical Mathematics
An introduction to the mathematical theory of inverse problems
An introduction to the mathematical theory of inverse problems
Modeling low Reynolds number incompressible flows using SPH
Journal of Computational Physics
Rank-deficient and discrete ill-posed problems: numerical aspects of linear inversion
Rank-deficient and discrete ill-posed problems: numerical aspects of linear inversion
A subgrid-scale deconvolution approach for shock capturing
Journal of Computational Physics
Projective Methods for Stiff Differential Equations: Problems with Gaps in Their Eigenvalue Spectrum
SIAM Journal on Scientific Computing
Coarse-grained stochastic processes and Monte Carlo simulations in lattice systems
Journal of Computational Physics
Constraint-Defined Manifolds: a Legacy Code Approach to Low-Dimensional Computation
Journal of Scientific Computing
Prediction from Partial Data, Renormalization, and Averaging
Journal of Scientific Computing
Error Analysis of Coarse-Graining for Stochastic Lattice Dynamics
SIAM Journal on Numerical Analysis
Projective and coarse projective integration for problems with continuous symmetries
Journal of Computational Physics
Numerical and Statistical Methods for the Coarse-Graining of Many-Particle Stochastic Systems
Journal of Scientific Computing
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We develop a new dimension reduction method for large size systems of ordinary differential equations (ODEs) obtained from a discretization of partial differential equations of viscous single and multiphase fluid flow. The method is also applicable to other large-size classical particle systems with negligibly small variations of particle concentration. We propose a new computational closure for mesoscale balance equations based on numerical iterative deconvolution. To illustrate the computational advantages of the proposed reduction method, we use it to solve a system of smoothed particle hydrodynamic ODEs describing single-phase and two-phase layered Poiseuille flows driven by uniform and periodic (in space) body forces. For the single-phase Poiseuille flow driven by the uniform force, the coarse solution was obtained with the zero-order deconvolution. For the single-phase flow driven by the periodic body force and for the two-phase flows, the higher-order (the first- and second-order) deconvolutions were necessary to obtain a sufficiently accurate solution.