Electronic Resource
Springer
Astrophysics and space science
188 (1992), S. 159-164
ISSN:
1572-946X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract A method is proposed to reduce the field anisotropy inN-body calculations arising from the discretization of Poisson's equation in a particle-mesh scheme. Specifically, the mass is split (in addition to that employed in the mass assignment algorithm) over neighbouring points to create compensating higher-order multipoles. Improvement by factor 2 has been observed in the field calculations, and spurious geometric effects in the example of a 4000 particle free-fall collapse have been reduced.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00642933
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