We introduce a framework for generating samples of a distribution given a finite number of its moments, targeted at particle-based solutions of kinetic equations and rarefied gas flow …
J Xu, C Yang - Rock Mechanics and Rock Engineering, 2023 - Springer
The uncertainty of surrounding rock mechanical parameters has much great influence on design, construction and stability evaluation for tunnel engineering. However, the traditional …
This work presents neural network based minimal entropy closures for the moment system of the Boltzmann equation, that preserve the inherent structure of the system of partial …
We introduce MESSY estimation, a Maximum-Entropy based Stochastic and Symbolic densitY estimation method. The proposed approach recovers probability density functions …
WA Porteous, MP Laiu, CD Hauck - arXiv preprint arXiv:2106.08973, 2021 - arxiv.org
We present a data-driven approach to construct entropy-based closures for the moment system from kinetic equations. The proposed closure learns the entropy function by fitting the …
An important class of multi-scale flow scenarios deals with an interplay between kinetic and continuum phenomena. While hybrid solvers provide a natural way to cope with these …
K Chung, F Fei, MH Gorji, P Jenny - Journal of Computational Physics, 2023 - Elsevier
We present a novel framework, enabled by machine learning (ML) trainable models, for collisional plasma flow simulations governed by the Rosenbluth-Fokker-Planck (RFP) …
Z Cai - Journal of Computational Physics, 2021 - Elsevier
We survey a number of moment hierarchies and test their performances in computing one- dimensional shock structures. It is found that for high Mach numbers, the moment …
J Xu, Z Yan, Y Wang - Applied Sciences, 2024 - mdpi.com
Evaluating the reliability of deep soft rock tunnels is a very important issue to be solved. In this study, we propose a Monte Carlo simulation reliability analysis method (MCS–RAM) …