Zobrazeno 1 - 10
of 14 210
pro vyhledávání: '"A. Karlin"'
Autor:
Kogelbauer, Florian, Karlin, Ilya
We combine the theory of slow spectral closure for linearized Boltzmann equations with Maxwell's kinetic boundary conditions to derive non-local hydrodynamics with arbitrary accommodation. Focusing on shear-mode dynamics, we obtain explicit steady st
Externí odkaz:
http://arxiv.org/abs/2411.05428
Autor:
Liu, Yahua, Hosseini, Seyed Ali, Liu, Cong, Feinberg, Milo, Dorschner, Benedikt, Wang, Zuankai, Karlin, Ilya
Contact time of bouncing drops is one of the most essential parameters to quantify the water-repellency of surfaces. Generally, the contact time on superhydrophobic surfaces is known to be Weber number-independent. Here, we probe an additional charac
Externí odkaz:
http://arxiv.org/abs/2410.20821
Autor:
Ichimura, Tsuyoshi, Fujita, Kohei, Hori, Muneo, Maddegedara, Lalith, Wells, Jack, Gray, Alan, Karlin, Ian, Linford, John
We propose a CPU-GPU heterogeneous computing method for solving time-evolution partial differential equation problems many times with guaranteed accuracy, in short time-to-solution and low energy-to-solution. On a single-GH200 node, the proposed meth
Externí odkaz:
http://arxiv.org/abs/2409.20380
Autor:
Sawant, Nilesh, Karlin, Ilya
A new lattice Boltzmann model (LBM) is presented to describe chemically reacting multicomponent fluid flow in homogenised porous media. In this work, towards further generalizing the multicomponent reactive lattice Boltzmann model, we propose a formu
Externí odkaz:
http://arxiv.org/abs/2409.02930
The double distribution function approach is an efficient route towards extension of kinetic solvers to compressible flows. With a number of realizations available, an overview and comparative study in the context of high speed compressible flows is
Externí odkaz:
http://arxiv.org/abs/2405.11489
Autor:
Kogelbauer, Florian, Karlin, Ilya
An exact closure for hydrodynamic variables is rigorously derived from the linear Boltzmann kinetic equation. Our approach, based on spectral theory, structural properties of eigenvectors and the theory of slow manifolds, allows us to define a unique
Externí odkaz:
http://arxiv.org/abs/2311.14174
Maintaining a maximum bipartite matching online while minimizing recourse/augmentations is a well studied problem, motivated by content delivery, job scheduling, and hashing. A breakthrough result of Bernstein, Holm, and Rotenberg (\emph{SODA 2018})
Externí odkaz:
http://arxiv.org/abs/2309.10214
The lattice Boltzmann method, after close to thirty years of presence in computational fluid dynamics has turned into a versatile, efficient and quite popular numerical tool for fluid flow simulations. The lattice Boltzmann method owes its popularity
Externí odkaz:
http://arxiv.org/abs/2309.07517
Autor:
Hosseini, Seyed Ali, Karlin, Ilya
Asymptotic freedom is a feature of quantum chromodynamics that guarantees its well-posedeness. We derive an analog of asymptotic freedom enabling unconditional stability of lattice Boltzmann simulation of hydrodynamics. For the lattice Boltzmann mode
Externí odkaz:
http://arxiv.org/abs/2308.03034
Autor:
Kogelbauer, Florian, Karlin, Ilya
We give an explicit description of the spectral closure for the three-dimensional linear Boltzmann-BGK equation in terms of the macroscopic fields, density, flow velocity and temperature. This results in a new linear fluid dynamics model which is val
Externí odkaz:
http://arxiv.org/abs/2306.07103