Advanced Search

Query:

Fill in the form and click »Search«...

Format:

Display: entries per page entries

Zbl 0622.76054
Monaghan, J.J.; Lattanzio, J.C.
A refined particle method for astrophysical problems. (English)
[J] Astron. Astrophys. 149, 135-143 (1985). ISSN 0004-6361; ISSN 1432-0746/e

A version of the particle method SPH with greatly increased efficiency is described. The increase in efficiency is due to the use of a grid both for the calculation of gravitational forces and for the determination of nearest neighbours. Sufficient accuracy is achieved on coarse grids by the use of a short range correction for the gravitational force. Storage problems are thereby eliminated. Other improvements include the use of interpolation kernels based on B-splines, the use of particles with different masses and the use of a simple efficient artificial viscosity. A wide variety of tests confirm the overall accuracy.

MSC 2000:: *76E20 Instability of flows in nature
65D07 Splines (numerical methods)
76M99 Basic methods in fluid mechanics
85A05 Galactic and stellar dynamics

Keywords: particle method; gravitational forces; nearest neighbours; short range correction; interpolation kernels; B-splines

Comment on this Item PDF MathML XML ASCII DVI PS BibTeX Online Ordering Journal

	Scientific prize winners of the ICM 2010
	Overhang
	Lie groups, physics and geometry. An introduction for physicists, engineers and chemists.

Advanced Search

Zentralblatt MATH Berlin [Germany]