Generating Optimal Initial Conditions for Smoothed Particle Hydrodynamics Simulations
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA(2015)
摘要
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.
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关键词
cosmology: miscellaneous,methods: numerical,supernovae: general
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