discretization


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Related to discretization: Discretization error

discretization

[dis‚krēd·ə′zā·shən]
(mathematics)
A procedure in the numerical solution of partial differential equations in which the domain of the independent variable is subdivided into cells or elements and the equations are expressed in discrete form at each point by finite difference, finite volume, or finite element methods.
References in periodicals archive ?
Some iterative numerical methods such as AGE, IADE, ADI and classical methods are compared for solving the PDE discretization [8].
A detailed study for the finite difference discretization of the 2D Laplacian with nine point stencils shows that our symbolic approach can be easily performed and implemented and, at the same time, is also very effective.
The applicability of discrete models in other domains such as building and HVAC systems, which have significantly more continuous variables, is contingent upon the discretization of continuous variables.
The RNG [kappa]-[epsilon] simulation did not converge even if the first-order discretization schemes were used.
In both works solving problems were obtained by method partial discretization nonlinear the differential equations, since this method allows you to get solve the problem without any simplifications.
Local refinement of the discretization grid around exhaust grilles (left) and the boundary layer around the supply duct and roof (right)
The discretization process is done by replacing the index of array in Table 3 that is generated from AVL-tree, which gives unduplicated sorted frequent patterns.
By discretization over small intervals [DELTA]T, (7) leads to:
Originally developed for astrophysics applications but recently gaining popularity with mechanical engineers, SPH uses meshless discretization for virtual modeling.
For instance, in the widget for discretization of continuous attributes (Figure 4), we can set a general discretization method (equal interval width, equal frequency of data points, and entropy-based discretization), override it for individual attributes, or manually discretize an attribute by entering expert-defined thresholds or finding suitable ones from a graph that shows distributions and gains at different threshold values.
In the present article it will be shown that the method of Ohser and Schladitz (2009) can be improved considerably by finer discretization of the outer integral in the Crofton formula.