Results 61 to 70 of about 277,672 (285)
Journal of Applied Mathematics, 2012 An explicit finite difference scheme for one-dimensional Burgers equation is derived from the lattice Boltzmann method. The system of the lattice Boltzmann equations for the distribution of the fictitious particles is rewritten as a three-level finite ...
Qiaojie Li +3 more
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A topology optimization method for rarefied gas flows
Nihon Kikai Gakkai ronbunshu, 2017 We construct a topology optimization method for two dimensional rarefied gas flow problems, based on level-set boundary expressions. The degree of rarefaction is expressed by the Knudsen number, which is the ratio of the mean free path and the ...
Ayami SATO +4 more
doaj +1 more source
Mean Drift Length During a Semi Wave of the CW Radio-Frequency Field [PDF]
Engineering and Technology Journal, 2011 In this work we study mean drift length during a semi wave of the CW radiofrequency field the behavior of the diffusion particles in the pure Helium gas whose plays important role in production of the lam ps such as glow lamps and gas lasers through the ...
Ibrahim K. Fayyadh +2 more
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Boltzmann Equation for Relativistic Neutral Scalar Field in Non-equilibrium Thermo Field Dynamics
, 2011 A relativistic neutral scalar field is investigated on the basis of the Schwinger-Dyson equation in the non-equilibrium thermo field dynamics. A time evolution equation for a distribution function is obtained from a diagonalization condition for the ...
Inagaki, Tomohiro, Mizutani, Yuichi
core +1 more source
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.
openaire +3 more sources
Advanced Functional Materials, EarlyView.A Cu‐based crystal‐glass composite with high‐density twins is identified by a fast screening technique using combinatorial sputtering together with XRD and nanoindentation mapping. This bamboo‐like structure demonstrates homogenous plastic flow and retains high strength during in situ high temperature tests, up to 1 GPa at 550°C, owing to those ...
Chunhua Tian +10 more
wiley +1 more source
Numerical Treatment of the Boltzmann Equation for Self-Propelled Particle Systems
Physical Review X, 2014 Kinetic theories constitute one of the most promising tools to decipher the characteristic spatiotemporal dynamics in systems of actively propelled particles.
Florian Thüroff +2 more
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A gradient flow approach to the Boltzmann equation
, 2019 We show that the spatially homogeneous Boltzmann equation evolves as the gradient flow of the entropy with respect to a suitable geometry on the space of probability measures which takes the collision process into account.
Erbar, Matthias
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Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges
Advanced Functional Materials, EarlyView.Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley +1 more source
Duality in matrix lattice Boltzmann models
, 2007 The notion of duality between the hydrodynamic and kinetic (ghost) variables of lattice kinetic formulations of the Boltzmann equation is introduced.
D. d’Humières +4 more
core +1 more source