Volume 1, Issue 4
A Parameter-Free Generalized Moment Limiter for High-Order Methods on Unstructured Grids

Michael Yang & Z.J. Wang

Adv. Appl. Math. Mech., 1 (2009), pp. 451-480.

Published online: 2009-01

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  • Abstract

A parameter-free limiting technique is developed for high-order unstruc- tured-grid methods to capture discontinuities when solving hyperbolic conservation laws. The technique is based on a "troubled-cell" approach, in which cells requiring limiting are first marked, and then a limiter is applied to these marked cells. A parameter-free accuracy-preserving TVD marker based on the cell-averaged solutions and solution derivatives in a local stencil is compared to several other markers in the literature in identifying "troubled cells". This marker is shown to be reliable and efficient to consistently mark the discontinuities. Then a compact high-order hierarchical moment limiter is developed for arbitrary unstructured grids. The limiter preserves a degree p polynomial on an arbitrary mesh. As a result, the solution accuracy near smooth local extrema is preserved. Numerical results for the high-order spectral difference methods are provided to illustrate the accuracy, effectiveness, and robustness of the present limiting technique.

  • Keywords

Limiter shock-capturing high-order unstructured grids

  • AMS Subject Headings

65M70 76M20 76M22

  • Copyright

COPYRIGHT: © Global Science Press

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@Article{AAMM-1-451, author = {Michael Yang and Z.J. Wang}, title = {A Parameter-Free Generalized Moment Limiter for High-Order Methods on Unstructured Grids}, journal = {Advances in Applied Mathematics and Mechanics}, year = {2009}, volume = {1}, number = {4}, pages = {451--480}, abstract = {

A parameter-free limiting technique is developed for high-order unstruc- tured-grid methods to capture discontinuities when solving hyperbolic conservation laws. The technique is based on a "troubled-cell" approach, in which cells requiring limiting are first marked, and then a limiter is applied to these marked cells. A parameter-free accuracy-preserving TVD marker based on the cell-averaged solutions and solution derivatives in a local stencil is compared to several other markers in the literature in identifying "troubled cells". This marker is shown to be reliable and efficient to consistently mark the discontinuities. Then a compact high-order hierarchical moment limiter is developed for arbitrary unstructured grids. The limiter preserves a degree p polynomial on an arbitrary mesh. As a result, the solution accuracy near smooth local extrema is preserved. Numerical results for the high-order spectral difference methods are provided to illustrate the accuracy, effectiveness, and robustness of the present limiting technique.

}, issn = {2075-1354}, doi = {https://doi.org/10.4208/aamm.09-m0913}, url = {http://global-sci.org/intro/article_detail/aamm/8381.html} }
TY - JOUR T1 - A Parameter-Free Generalized Moment Limiter for High-Order Methods on Unstructured Grids AU - Michael Yang & Z.J. Wang JO - Advances in Applied Mathematics and Mechanics VL - 4 SP - 451 EP - 480 PY - 2009 DA - 2009/01 SN - 1 DO - http://doi.org/10.4208/aamm.09-m0913 UR - https://global-sci.org/intro/article_detail/aamm/8381.html KW - Limiter KW - shock-capturing KW - high-order KW - unstructured grids AB -

A parameter-free limiting technique is developed for high-order unstruc- tured-grid methods to capture discontinuities when solving hyperbolic conservation laws. The technique is based on a "troubled-cell" approach, in which cells requiring limiting are first marked, and then a limiter is applied to these marked cells. A parameter-free accuracy-preserving TVD marker based on the cell-averaged solutions and solution derivatives in a local stencil is compared to several other markers in the literature in identifying "troubled cells". This marker is shown to be reliable and efficient to consistently mark the discontinuities. Then a compact high-order hierarchical moment limiter is developed for arbitrary unstructured grids. The limiter preserves a degree p polynomial on an arbitrary mesh. As a result, the solution accuracy near smooth local extrema is preserved. Numerical results for the high-order spectral difference methods are provided to illustrate the accuracy, effectiveness, and robustness of the present limiting technique.

Michael Yang & Z.J. Wang. (1970). A Parameter-Free Generalized Moment Limiter for High-Order Methods on Unstructured Grids. Advances in Applied Mathematics and Mechanics. 1 (4). 451-480. doi:10.4208/aamm.09-m0913
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