Generating Optimal Initial Conditions for Smoothed Particle Hydrodynamics Simulations. (18th December 2015)

• Record Type: Journal Article
• Authors: Diehl, S.; Rockefeller, G.; Fryer, C. L.; Riethmiller, D.; Statler, T. S.
• Is Part Of: Publications of the Astronomical Society of Australia. Volume 32(2015)
• Publication Date: 2015-12-18
• Subjects: cosmology: miscellaneous – methods: numerical – supernovae: general; Astronomy -- Periodicals; Southern sky (Astronomy) -- Periodicals; Astrophysics -- Periodicals; Periodicals; 520.5
• DOI: 10.1017/pasa.2015.50
• Languages: English
• ISSNs: 1323-3580

Abstract

Abstract: We review existing smoothed particle hydrodynamics setup methods and outline their advantages, limitations, and drawbacks. We present a new method for constructing initial conditions for smoothed particle hydrodynamics simulations, which may also be of interest for N-body simulations, and demonstrate this method on a number of applications. This new method is inspired by adaptive binning techniques using weighted Voronoi tessellations. Particles are placed and iteratively moved based on their proximity to neighbouring particles and the desired spatial resolution. This new method can satisfy arbitrarily complex spatial resolution requirements.