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相关论文: Large deviations for the two-time-scale stochastic…

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We implement a stabilized finite element method for steady Darcy-Brinkman-Forchheimer model within the continuous Galerkin framework. The nonlinear fluid model is first linearized using a standard \textit{Newton's method. The sequence of…

数值分析 · 数学 2025-01-09 Hyun Chul Yoon , S. M. Mallikarjunaiah

In this paper, we establish a small time large deviation principle for the strong solution of 3D stochastic primitive equations driven by multiplicative noise. Both the small noise and the small, but highly nonlinear, unbounded nonlinear…

概率论 · 数学 2018-11-14 Zhao Dong , Rangrang Zhang

This paper is focused on the generalized Forchheimer flows of slightly compressible fluids in porous media. They are reformulated as a degenerate parabolic equation for the pressure. The initial boundary value problem is studied with…

偏微分方程分析 · 数学 2015-10-02 Luan Hoang , Thinh Kieu

This article is concerned with the \emph{asymptotically autonomous robustness} (almost surely and in probability) of non-autonomous random attractors for two stochastic versions of 3D convective Brinkman-Forchheimer (CBF) equations defined…

概率论 · 数学 2023-05-25 Kush Kinra , Manil T. Mohan , Renhai Wang

This paper presents the variational discretization of the compressible Navier-Stokes-Fourier system, in which the viscosity and the heat conduction terms are handled within the variational approach to nonequilibrium thermodynamics as…

微分几何 · 数学 2022-02-09 Benjamin Couéraud , François Gay-Balmaz

In this paper, a lattice Boltzmann (LB) model with double distribution functions is proposed for two-phase flow in porous media where one distribution function is used for pressure governed by the Poisson equation, and the other is applied…

计算物理 · 物理学 2018-08-24 Zhenhua Chai , Hong Liang , Rui Du , Baochang Shi

Based on Sirovich's two-fluid kinetic theory and a dodecagonal discrete velocity model, a two-dimensional 61-velocity finite-difference lattice Boltzmann method for the complete Navier-Stokes equations of binary fluids is formulated.…

统计力学 · 物理学 2009-11-10 Aiguo Xu

We consider parametric estimation for a second order linear parabolic stochastic partial differential equation (SPDE) in two space dimensions driven by a $Q$-Wiener process with a small noise based on high frequency spatio-temporal data. We…

统计理论 · 数学 2024-08-06 Yozo Tonaki , Yusuke Kaino , Masayuki Uchida

We address an original approach for the convergence analysis of a finite-volume scheme for the approximation of a stochastic diffusion-convection equation with multiplicative noise in a bounded domain of $\mathbb{R}^d$ (with $d=2$ or $3$)…

数值分析 · 数学 2024-02-20 Caroline Bauzet , Kerstin Schmitz , Aleksandra Zimmermann

This paper is devoted to investigating the Freidlin-Wentzell's large deviation principle for a class of McKean-Vlasov quasilinear SPDEs perturbed by small multiplicative noise. We adopt the variational framework and the modified weak…

概率论 · 数学 2021-06-29 Wei Hong , Shihu Li , Wei Liu

In the given paper, we confront three finite difference approximations to the Navier--Stokes equations for the two-dimensional viscous incomressible fluid flows. Two of these approximations were generated by the computer algebra assisted…

数值分析 · 数学 2015-08-28 P. Amodio , Yu. Blinkov , V. Gerdt , R. La Scala

In this work, we consider a general consistent and conservative phase-field model for the incompressible two-phase flows. In this model, not only the Cahn-Hilliard or Allen-Cahn equation can be adopted, but also the mass and the momentum…

流体动力学 · 物理学 2022-09-14 Chengjie Zhan , Zhenhua Chai , Baochang Shi

In this article, we established a large deviation principle for invariant measures of solutions of stochastic partial differential equations with two reflecting walls driven by space-time white noise.

概率论 · 数学 2012-04-02 Tusheng Zhang

We consider the system of partial differential equations governing two-dimensional flows of a robust class of viscoelastic rate-type fluids with stress diffusion, involving a general objective derivative. The studied system generalizes the…

偏微分方程分析 · 数学 2022-06-08 Miroslav Bulíček , Josef Málek , Casey Rodriguez

We present a series of three-dimensional discrete Boltzmann (DB) models for compressible flows in and out of equilibrium. The key formulating technique is the construction of discrete equilibrium distribution function through inversely…

流体动力学 · 物理学 2018-03-06 Yanbiao Gan , Aiguo Xu , Guangcai Zhang , Huilin Lai

A semi-implicit Lax-Wendroff kinetic scheme is developed for hydrodynamic phonon transport in solid materials based on the Boltzmann transport equation under the double relaxation time approximation, in which both the normal and resistive…

计算物理 · 物理学 2026-01-30 Shijie Li , Hong Liang , Songze Chen , Chuang Zhang

We consider a system of multiscale stochastic differential equations whose slow component is drivenby a fractional Brownian motion with Hurst parameter H greater than 1/2. Under ergodic assumptions ensuring the applicability of the…

概率论 · 数学 2025-12-10 Xue-Mei Li , Colin Piernot , Szymon Sobczak , Kexing Ying

Sharp large deviation estimates for stochastic differential equations with small noise, based on minimizing the Freidlin-Wentzell action functional under appropriate boundary conditions, can be obtained by integrating certain matrix Riccati…

统计力学 · 物理学 2023-01-11 Timo Schorlepp , Tobias Grafke , Rainer Grauer

This paper deals with the derivation of compressible two-phase flow models. We use a thin domain approximation of a two-layer configuration governed by the Navier-Stokes equations, following the works [H. B. Stewart and B. Wendroff, J.…

偏微分方程分析 · 数学 2025-06-11 Nicolas Seguin , Khaled Saleh , Pierrick Le Vourc'H

In this work, we investigate a variational formulation for a time-fractional Fokker-Planck equation which arises in the study of complex physical systems involving anomalously slow diffusion. The model involves a fractional-order Caputo…

数值分析 · 数学 2020-06-05 Manh Hong Duong , Bangti Jin
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