Embedding Lagrangian Sink Particles in Eulerian Grids

Details Embedding Lagrangian Sink Particles in Eulerian Grids Embedding Lagrangian Sink Particles in Eulerian Grids

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aspc..323..401k&link_type=abstract

Star Formation in the Interstellar Medium: In Honor of David Hollenbach, Chris McKee and Frank Shu, ASP Conference Proceedings,

Statistics

Computation

Scientific paper

We introduce a computational method for embedding Lagrangian sink particles into an Eulerian calculation. Simulations of gravitational collapse generally produce regions whose density greatly exceeds the mean density in the simulation. These dense regions require extremely small time steps to maintain numerical stability. Smoothed particle hydrodynamics (SPH) codes approach this problem by introducing non-gaseous, accreting sink particles, and Eulerian codes may introduce fixed sink cells. However, until now there has been no approach that allows Eulerian codes to follow accretion onto multiple, moving objects; we have removed that limitation. We have tested this new method and found that it produces excellent agreement with analytic solutions.

Affiliated with

Also associated with

No associations

Rating

Embedding Lagrangian Sink Particles in Eulerian Grids does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Embedding Lagrangian Sink Particles in Eulerian Grids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Embedding Lagrangian Sink Particles in Eulerian Grids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1022602