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相关论文: Statistic inversion of multi-zone transition proba…

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The basic system of differential equations for a multiphase flow with the introduction of the probability of each phase in the flow is considered. The main analysis is focused on the case of a heterogeneous two-phase flow. The conservation…

流体动力学 · 物理学 2018-03-12 Ivan Kazachkov

We study an inverse random obstacle scattering problems in $\mathbb{R}^2$ where the scatterer is formulated by a Gaussian process defined on the angular parameter domain. Equipped with a modified covariance function which is mathematically…

数值分析 · 数学 2026-02-02 Zhiqi Sun , Xiang Xu , Yiwen Lin

We introduce a computational framework to statistically infer thermophysical properties of any given wall from in-situ measurements of air temperature and surface heat fluxes. The proposed framework uses these measurements, within a…

应用统计 · 统计学 2018-08-16 Lia De Simon , Marco Iglesias , Benjamin Jones , Christopher Wood

Accurate characterization of subsurface heterogeneity is challenging but essential for applications such as reservoir pressure management, geothermal energy extraction and CO$_2$, H$_2$, and wastewater injection operations. This challenge…

机器学习 · 计算机科学 2026-04-16 Harun Ur Rashid , Mingxin Li , Aleksandra Pachalieva , Georg Stadler , Daniel O'Malley

Using the integral transformation, the field-theoretical Hamiltonian of the statistical field theory of fluids is obtained, along with the microscopic expressions for the coefficients of the Hamiltonian. Applying this approach to the…

统计力学 · 物理学 2020-05-06 Nikolai V. Brilliantov , J. Miguel Rubi , Yury A. Budkov

Atmospheric trace-gas inversion refers to any technique used to predict spatial and temporal fluxes using mole-fraction measurements and atmospheric simulations obtained from computer models. Studies to date are most often of a…

An adaptive sampling approach for efficient detection of bifurcation boundaries in parametrized fluid flow problems is presented herein. The study extends the machine-learning approach of Silvester~(J. Comput. Phys., 553 (2026), 114743),…

流体动力学 · 物理学 2026-02-19 Anshima Singh , David J. Silvester

This paper investigates the non-equilibrium hydrodynamic behavior of a simple totally asymmetric interacting particle system of particles, antiparticles and holes on $\mathbb{Z}$. Rigorous hydrodynamic results apply to our model with a…

概率论 · 数学 2016-09-13 Márton Balázs , Attila László Nagy , Bálint Tóth , István Tóth

We describe a novel framework for estimating subsurface properties, such as rock permeability and porosity, from time-lapse observed seismic data by coupling full-waveform inversion, subsurface flow processes, and rock physics models. For…

地球物理 · 物理学 2020-05-06 Dongzhuo Li , Kailai Xu , Jerry M. Harris , Eric Darve

The theory of mesoscopic fluctuations is applied to inhomogeneous solids consisting of chaotically distributed regions with different crystalline structure. This approach makes it possible to describe statistical properties of such mixture…

统计力学 · 物理学 2015-06-25 V. I. Yukalov

A Hamiltonian two-field gyrofluid model for kinetic Alfv\'en waves (KAWs) in a magnetized electron-proton plasma, retaining ion finite-Larmor-radius corrections and parallel magnetic field fluctuations, is used to study the inverse cascades…

等离子体物理 · 物理学 2021-04-01 George Miloshevich , Dimitri Laveder , Thierry Passot , Pierre-Louis Sulem

Bifurcation theory is the usual analytic approach to study the parameter space of a dynamical system. Despite the great power of prediction of these techniques, fundamental limitations appear during the study of a given problem. Nonlinear…

混沌动力学 · 物理学 2023-10-02 Alexandre Wagemakers , Alvar Daza , Miguel A. F. Sanjuán

Using the collective variables (CV) method the basic relations of statistical field theory of a multicomponent non-homogeneous fluids are reconsidered. The corresponding CV action depends on two sets of scalar fields - fields…

软凝聚态物质 · 物理学 2012-07-02 Oksana Patsahan , Ihor Mryglod , Jean-Michel Caillol

This article establishes a first-principles statistical field theory of fully developed isotropic turbulence. Applying an exact Helmholtz decomposition to the local angular momentum field ($\Lvec = \rvec \times \uvec$) reveals a segregation…

流体动力学 · 物理学 2026-04-22 Ahmed Farooq

Mode conversion in the region where the sound and Alfven speeds are equal is a complex process, which has been studied both analytically and numerically, and has been seen in observations. In order to further the understanding of this…

天体物理学 · 物理学 2008-08-04 A. M. Dee McDougall , Alan W. Hood

We present a probabilistic multiphysics inversion based on Bayesian inference with trans-dimensional models. We jointly consider magnetotelluric, receiver function, and Rayleigh-wave dispersion data to infer one-dimensional lithospheric…

地球物理 · 物理学 2025-10-20 P. Shahsavari , J. Dettmer , M. J. Unsworth , A. Schaeffer

The statistical mechanical description of two-dimensional inviscid fluid turbulence is reconsidered. Using this description, we make predictions about turbulent flow in a rapidly rotating laboratory annulus. Measurements on the continuously…

软凝聚态物质 · 物理学 2009-11-11 Sunghwan Jung , P. J. Morrison , Harry L. Swinney

It has been previously observed that during a pumping test in heterogeneous media, drawdown data from different time periods collected at a single location produce different estimates of aquifer properties and that Theis type-curve…

地球物理 · 物理学 2011-08-22 Dylan R. Harp , Velimir V. Vesselinov

We present a detailed direct numerical simulation of statistically steady, homogeneous, isotropic, two-dimensional magnetohydrodynamic (2D MHD) turbulence. Our study concentrates on the inverse cascade of the magnetic vector potential. We…

混沌动力学 · 物理学 2014-07-24 Debarghya Banerjee , Rahul Pandit

We develop a multi-range fractional (MRF) model to capture the turbulent spectrum consisting of multiple self-similar ranges impacted by multiple effects. The MRF model is validated using long-term observational atmospheric surface layer…

流体动力学 · 物理学 2024-12-25 Fei-Chi Zhang , Jin-Han Xie , Xiaojing Zheng
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