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arXiv 0907.1216cond-mat.stat-mechmath-phmath.MP
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玻耳兹曼方程与流体动力学涨落

Boltzmann equation and hydrodynamic fluctuations

M. Colangeli, M. Kroger, H. C. Ottinger

摘要:

我们应用不变流形的方法从线性化的Boltzmann方程导出广义流体动力学方程,并确定精确的输运系数,服从Green-Kubo公式。数值计算是在麦克斯韦分子的特殊情况下进行的。我们调查,通过与实验数据和以前的方法,密度波动的频谱和地址的制度有限努森数和有限频率流体力学的比较。

英文摘要:

We apply the method of invariant manifolds to derive equations of generalized hydrodynamics from the linearized Boltzmann equation and determine exact transport coefficients, obeying Green-Kubo formulas. Numerical calculations are performed in the special case of Maxwell molecules. We investigate, through the comparison with experimental data and former approaches, the spectrum of density fluctuations and address the regime of finite Knudsen numbers and finite frequencies hydrodynamics.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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