Results 31 to 40 of about 277,672 (285)

Quantum Hydrodynamic Model by Moment Closure of Wigner Equation

open access: yes, 2012
In this paper, we derive the quantum hydrodynamics models based on the moment closure of the Wigner equation. The moment expansion adopted is of the Grad type firstly proposed in \cite{Grad}.
Abramowitz M.   +9 more
core   +1 more source

Electro-osmotic flow of a third-grade fluid past a channel having stretching walls

open access: yesNonlinear 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
doaj   +1 more source

A Three-Dimensional Semiclassical Lattice Boltzmann Method for Lid-Driven Cubic Cavity Flows

open access: yesJournal 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
doaj   +1 more source

Boltzmann-Based Empirical Model to Calculate Volume Loss during Spirit Ageing

open access: yesBeverages, 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
doaj   +1 more source

Kinetic theory of gases: stochastic thermodynamics avant la lettre

open access: yesRevista Brasileira de Ensino de Física
We 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
doaj   +1 more source

Low-Density Asymptotic Behavior of Observables of Hard Sphere Fluids

open access: yesAdvances 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
doaj   +1 more source

Solving the Boltzmann equation deterministically by the fast spectral method : application to gas microflows [PDF]

open access: yes, 2014
Based on the fast spectral approximation to the Boltzmann collision operator, we present an accurate and efficient deterministic numerical method for solving the Boltzmann equation.
Reese, Jason M., Wu, Lei, Zhang, Yonghao
core   +1 more source

From a kinetic equation to a diffusion under an anomalous scaling [PDF]

open access: yes, 2013
A linear Boltzmann equation is interpreted as the forward equation for the probability density of a Markov process (K(t), i(t), Y(t)), where (K(t), i(t)) is an autonomous reversible jump process, with waiting times between two jumps with finite ...
G Basile   +9 more
core   +7 more sources

Nonextensive Boltzmann Equation and Hadronization [PDF]

open access: yesPhysical Review Letters, 2005
For a general, associative addition rule defining a non-extensive thermodynamics we construct the strict monotonic function, which transforms it to an additive quantity. We investigate the evolution of one-particle distributions in the framework of a two-body Boltzmann equation supported with a non-extensive energy addition rule. In particular we study
Biro, T. S., Purcsel, G.
openaire   +3 more sources

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

open access: yesAdvanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham   +7 more
wiley   +1 more source

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