N-body simulations of gravitational dynamics
نویسندگان
چکیده
منابع مشابه
Gravitational N -Body Simulations
This book discusses in detail all the relevant numerical methods for the classical N body problem. It demonstrates how to develop clear and elegant algorithms for models of gravitational systems and explains the fundamental methematical tools needed to describe the dynamics of a large number of mutually attractive particles. Particular attention is given to the techniques needed to model astrop...
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We implement an efficient method to quantify time-dependent orbital complexity in gravitational N -body simulations. The technique, which we name DWaTIM, is based on a discrete wavelet transform of velocity orbital time series. The wavelet powerspectrum is used to measure trends in complexity continuously in time. We apply the method to the test cases N = 3 Pythagoreanand a perturbed N = 5 Cale...
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Many physical systems of current interest are chaotic, which means that numerical errors in their simulation are exponentially magnified with the passage of time. This could mean that a numerical solution of a chaotic system is the result of nothing but magnified noise, which calls into question the value of such simulations. Although this fact has been well known for a long time, its impact on...
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ژورنال
عنوان ژورنال: The European Physical Journal Plus
سال: 2011
ISSN: 2190-5444
DOI: 10.1140/epjp/i2011-11055-3