Rigorous derivation of a binary-ternary Boltzmann equation for a dense gas of hard spheres

Rigorous derivation of a binary-ternary Boltzmann equation for a dense gas of hard spheres
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硬球稠密气体二元-三元玻尔兹曼方程的严格推导

DOI:
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发表时间:
2020
期刊:
影响因子:
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通讯作者:
N. Pavlović
N. Pavlović
中科院分区:
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文献类型:
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作者:
Ioakeim Ampatzoglou;N. Pavlović

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本文提供了描述密集硬球气体的动力学特性的二元 - 内部玻尔兹曼方程的第一个严格推导,其中粒子经历了二元或三元瞬时相互作用,同时保持动量和能量。我们克服的得出该方程式的一个重要挑战与提供一个数学框架有关,该框架使我们能够检测二进制和三元相互作用。此外,本文介绍了新的代数和几何技术,以最终将二进制和三元相互作用解除,并理解它们能够及时成功的方式。
This paper provides the first rigorous derivation of a binary-ternary Boltzmann equation describing the kinetic properties of a dense hard-spheres gas, where particles undergo either binary or ternary instantaneous interactions, while preserving momentum and energy. An important challenge we overcome in deriving this equation is related to providing a mathematical framework that allows us to detect both binary and ternary interactions. Furthermore, this paper introduces new algebraic and geometric techniques in order to eventually decouple binary and ternary interactions and understand the way they could succeed one another in time.
DOI: 10.1007/s00220-021-04202-y
发表时间: 2021
影响因子: 2.4
作者:
Ampatzoglou, Ioakeim;Pavlović, Nataša
通讯作者: Pavlović, Nataša