Generating optimal initial conditions for smooth particle hydrodynamics (SPH) simulations

Journal Article · Tue Jan 01 00:00:00 EST 2008 · Monthly Notices of the Royal Astronomical Society

OSTI ID:962257

Diehl, Steven ^[1]; Rockefeller, Gabriel M ^[1]; Fryer, Christopher L ^[1]

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1. Los Alamos National Laboratory

We present a new optimal method to set up initial conditions for Smooth Particle Hydrodynamics Simulations, which may also be of interest for N-body simulations. This new method is based on weighted Voronoi tesselations (WVTs) and can meet arbitrarily complex spatial resolution requirements. We conduct a comprehensive review of existing SPH setup methods, and outline their advantages, limitations and drawbacks. A serial version of our WVT setup method is publicly available and we give detailed instruction on how to easily implement the new method on top of an existing parallel SPH code.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 962257
• Report Number(s): LA-UR-08-05763; LA-UR-08-5763; MNRAA4; TRN: US0903735
• Journal Information: Monthly Notices of the Royal Astronomical Society, Journal Name: Monthly Notices of the Royal Astronomical Society; ISSN 0035-8711
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING
PARTICLES
HYDRODYNAMICS
COMPUTERIZED SIMULATION
S CODES
CALCULATION METHODS