### Samenvatting

This paper consists of two parts. In the first part we give a review of a good
multigrid method for solving the steady Euler equations of gas dynamics on a
locally refined mesh. The method is self-adaptive and makes use of unstructured
grids that can be considered as parts of a nested sequence of structured grids. It
is briefly described and applied to some steady Euler-flow problems. The method
appears to be much more accurate and efficient than the corresponding multigrid
method that applies global refinements only.
In the second part of the paper, vectorisation of the code is treated. To enable
this vectorisation, index arrays are introduced and added to the quad-tree type
data-structure that is applied in the scalar case. Speed-up factors are given for the
same test cases as considered in the first part of the paper. The results are most
satisfactory.

Originele taal-2 | Engels |
---|---|

Titel | Proceedings of the 28th Computational Fluid Dynamics; 3-7 March 1997, Von Karman Institute for Fluid Dynamics Rhode-Saint Genese |

Redacteuren | H. Deconinck |

Plaats van productie | Rhode-Saint-Genèse |

Uitgeverij | Von Karman Institute for Fluid Dynamics |

Pagina's | 1-25 |

Status | Gepubliceerd - 1997 |

### Publicatie series

Naam | VKI LS |
---|---|

Volume | 1997-02 |

ISSN van geprinte versie | 0377-8312 |

## Vingerafdruk Duik in de onderzoeksthema's van 'Solution-adaptive multigrid for steady gas dynamics problems'. Samen vormen ze een unieke vingerafdruk.

## Citeer dit

Hemker, P. W., Koren, B., Lioen, W. M., Nool, M., & Maarel, van der, H. T. M. (1997). Solution-adaptive multigrid for steady gas dynamics problems. In H. Deconinck (editor),

*Proceedings of the 28th Computational Fluid Dynamics; 3-7 March 1997, Von Karman Institute for Fluid Dynamics Rhode-Saint Genese*(blz. 1-25). (VKI LS; Vol. 1997-02). Von Karman Institute for Fluid Dynamics.