Results 31 to 40 of about 1,297,051 (280)
The Quantum Statistical Mechanical Theory of Transport Processes [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 1993 A new derivation of the quantum Boltzmann transport equation for the Fermion system from the quantum time evolution equation for the wigner distribution function is presented.
Ali Maghari, Hassan Behnejad
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The Boltzmann equation and Cosmic Microwave Background
Revista de Investigación de Física, 2023 Observations on the anisotropies of the Cosmic Microwave Background (CMB) have become a fundamental tool in Cosmology. We present a brief description of the mformalism necessary to understand the evolution of the anisotropies, and how their power ...
Mississippi Valenzuela
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Non-Boltzmann behavior from the Boltzmann equation
Physical Review E, 1995 We compute the stress autocorrelation function in a two- and three-dimensional system by using the lattice-Boltzmann method. The algebraic long-time behavior ∼t-d/2 in the stress correlation function is clearly observed. The amplitude of this tail is compared with the mode-coupling expression for the long-time tail in the stress correlation function ...
Hagen, M.H.J., Lowe, C.P., Frenkel, D.
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On discrete models of Boltzmann-type kinetic equations
Современная математика: Фундаментальные направленияThe known nonlinear kinetic equations, in particular, the wave kinetic equation and the quantum Nordheim–Uehling–Uhlenbeck equations are considered as a natural generalization of the classical spatially homogeneous Boltzmann equation.
A. V. Bobylev
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Variational nodal methods for neutron transport: 40 years in review
Nuclear Engineering and Technology, 2022 The variational nodal method for solving the neutron transport equation has evolved over 40 years. Based on a functional form of the Boltzmann neutron transport equation, the method now comprises a complete set of variants that can be employed for ...
Tengfei Zhang, Zhipeng Li
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Electro-osmotic flow of a third-grade fluid past a channel having stretching walls
Nonlinear Engineering, 2019 The electro-osmotic flow of a third grade fluid past a channel having stretching walls has been studied in this paper. The channel height is taken much greater than the thickness of the electric double layer comprising of the Stern and diffuse layers ...
Parida Mamata, Padhy Sudarsan
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A Three-Dimensional Semiclassical Lattice Boltzmann Method for Lid-Driven Cubic Cavity Flows
Journal of Fluid Science and Technology, 2011 A three-dimensional lattice Boltzmann method based on the Uehling-Uhlenbeck Boltzmann-BGK equation is presented. The method is directly derived by projecting the kinetic governing equation onto the tensor Hermite polynomials and various hydrodynamic ...
Jaw-Yen YANG, Li-Hsin HUNG
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Kinetic theory of gases: stochastic thermodynamics avant la lettre
Revista Brasileira de Ensino de FísicaWe show that the kinetic theory of gases developed by Clausius, Maxwell, and Boltzmann can be understood as stochastic thermodynamics. This comprehension is based on the recognition that the dynamics used by Maxwell to demonstrate his distribution of ...
Mário J. de Oliveira
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Low-Density Asymptotic Behavior of Observables of Hard Sphere Fluids
Advances in Mathematical Physics, 2018 The paper deals with a rigorous description of the kinetic evolution of a hard sphere system in the low-density (Boltzmann–Grad) scaling limit within the framework of marginal observables governed by the dual BBGKY (Bogolyubov–Born–Green–Kirkwood–Yvon ...
Viktor Gerasimenko, Igor Gapyak
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Boltzmann-Based Empirical Model to Calculate Volume Loss during Spirit Ageing
Beverages, 2019 The Boltzmann equation is applied to fit data of volume loss for evaporation (in %) during spirit ageing in northern white oak (Quercus Alba) standard barrels of 205 L (+/− 10 L) using a temperature and humidity controlled cellar.
Noemí del Toro del Toro +8 more
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