Johan De Keyser

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The full multigrid method uses a hierarchy of successively ner grids. In a solution-adaptive grid hierarchy each grid is obtained by adaptive reenement of the grid on the previous level. On a distributed memory multiprocessor, each grid level must be partitioned and mapped so as to minimize the multigrid cycle execution time. In this report several grid(More)
We have surveyed solar wind plasma beta and field-aligned Alfvénic Mach number using Ulysses and Wind data. We show the characteristic timescale and occurrence frequency of 'magnet-ically dominated' solar wind, whose interaction with a planetary magnetosphere may produce a bow shock with multiple shock fronts. We discuss radial, latitudinal, and solar cycle(More)
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