2006
DOI: 10.1002/num.20124
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Analysis of local defect correction and high-order compact finite differences

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Cited by 4 publications
(4 citation statements)
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“…The work is going on in several directions including extending this scheme to multiscale cartesian grids using LDC [22][23][24] and to irregular geometries using the cartesian embedded boundary technique [25][26][27].…”
Section: Discussionmentioning
confidence: 99%
“…The work is going on in several directions including extending this scheme to multiscale cartesian grids using LDC [22][23][24] and to irregular geometries using the cartesian embedded boundary technique [25][26][27].…”
Section: Discussionmentioning
confidence: 99%
“…The default choice for the switch, i.e., s i (v) = 1, selects the central-biased weight matrix given by (15) if n is even or (16) if n is odd. The transition from central to noncentral weights may occur only when a discontinuity is detected in the cells of the reconstruction stencil or in a compressive region of v. Compressive regions of v are nonoverlapping subsets of the integration domain where f (v) is a nonincreasing quantity, i.e., where the characteristic curves tend to intersect thus leading to the shock formation.…”
Section: W σ I (V; X)a σ I and Size (N+1)×(n+1)mentioning
confidence: 99%
“…For example, it has been considered within compact finite differences, c.f. [15] and the recent extension to local defect correction methods [16]. Upwinding is achieved in ENO reconstruction by selecting the stencil that locally provides the smoothest possible interpolation polynomial, and in WENO reconstruction by a careful definition of the weights of a convex linear combination of all the possible ENO polynomials of a given degree.…”
Section: Introductionmentioning
confidence: 99%
“…The method is combined with finite volume discretizations in [4] and with finite elements in [19]. So-called high order compact difference schemes can be used in an LDC technique too [16]. In [9,17] LDC is studied with different grid types.…”
Section: Introductionmentioning
confidence: 99%