Results 51 to 60 of about 702,196 (224)
The work is devoted to the problem of solving large systems of linear algebraic equations with irregular structure matrices. To solve them the variant of the projection method in the Petrov-Galerkin form is proposed.
Vasily Esaulov, Roman Sinetsky
doaj +1 more source
Intrusive Galerkin Projection for Model Order Reduction of Uncertain Linear Dynamic Systems
This paper deals with model order reduction of random parameter-dependent (RPD) linear time invariant (LTI) systems by using the RPD-balanced realization (BR), recently developed by the same authors.
Lyes Nechak, H. Raynaud, C. Kulcsár
semanticscholar +1 more source
Conservative model reduction for finite-volume models
This work proposes a method for model reduction of finite-volume models that guarantees the resulting reduced-order model is conservative, thereby preserving the structure intrinsic to finite-volume discretizations.
Carlberg, Kevin +2 more
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We present an efficient discontinuous Galerkin scheme for simulation of the incompressible Navier-Stokes equations including laminar and turbulent flow.
Fehn, Niklas +3 more
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Discrete Modified Projection Methods for Urysohn Integral Equations with Green's Function Type Kernels [PDF]
In the present paper we consider discrete versions of the modified projection methods for solving a Urysohn integral equation with a kernel of the type of Green's function. For $r \geq 0,$ a space of piecewise polynomials of degree $\leq r $ with respect
Kulkarni, Rekha P., Rakshit, Gobinda
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Reduced order method for finite difference modeling of cardiac propagation
Efficient numerical simulation of cardiac electrophysiology is crucial for studying the electrical properties of the heart tissue. The cardiac bidomain model is the most widely accepted representation of the electrical behaviour of the heart muscle.
Khan Riasat +2 more
doaj +1 more source
In the process of water‐soluble cavern construction of salt cavern energy storage, since the interlayer does not dissolve in water easily, sudden collapse will cause engineering accidents such as bending and damage of the inner tube of the cavern.
Zenghui Zhao +5 more
wiley +1 more source
Symplectic Model Reduction of Hamiltonian Systems [PDF]
In this paper, a symplectic model reduction technique, proper symplectic decomposition (PSD) with symplectic Galerkin projection, is proposed to save the computational cost for the simplification of large-scale Hamiltonian systems while preserving the ...
Mohseni, Kamran, Peng, Liqian
core
Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei +4 more
wiley +1 more source
Pointwise best approximation results for Galerkin finite element solutions of parabolic problems [PDF]
In this paper we establish a best approximation property of fully discrete Galerkin finite element solutions of second order parabolic problems on convex polygonal and polyhedral domains in the $L^\infty$ norm.
Leykekhman, Dmitriy, Vexler, Boris
core +1 more source

