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The Front-Tracking Method (FTM) is a promising approach for numerical solution of multiphase flows, considering a trade-off between accuracy and computational cost. The existing open-source open-access software for FTM is scarce, due to…

流体动力学 · 物理学 2026-02-25 Ehsan Amani

We present a comprehensive numerical analysis of alternative transient eddy-current flowmetering methods for liquid metals. This type of flowmeter operates by tracking eddy-current markers excited by the magnetic field pulses in the flow of…

仪器与探测器 · 物理学 2018-11-19 Richard Looney , Jānis Priede

Numerical methods for solving the ideal magnetohydrodynamic (MHD) equations in more than one space dimension must either confront the challenge of controlling errors in the discrete divergence of the magnetic field, or else be faced with…

数值分析 · 数学 2015-05-19 Christiane Helzel , James A. Rossmanith , Bertram Taetz

The homogenized harmonic balance finite element (FE) method enables efficient nonlinear eddy-current simulations of 3-D devices with lamination stacks by combining the harmonic balance method with a frequency-domain-based homogenization…

计算工程、金融与科学 · 计算机科学 2025-12-09 Jan-Magnus Christmann , Laura A. M. D'Angelo , Herbert De Gersem , Sven Pfeiffer , Sajjad H. Mirza

This paper investigates the existence and uniqueness of local strong solutions to the three-dimensional compressible magnetohydrodynamic (MHD) equations with density-dependent viscosities in an exterior domain. The system models the…

偏微分方程分析 · 数学 2025-04-08 Hairong Liu , Tao Luo , Hua Zhong

We investigate the application of artificial neural networks to stabilize proper orthogonal decomposition based reduced order models for quasi-stationary geophysical turbulent flows. An extreme learning machine concept is introduced for…

流体动力学 · 物理学 2018-05-09 Omer San , Romit Maulik

Bubbly flows, as present in bubble column reactors, can be simulated using a variety of simulation techniques. In order to gain high resolution CFD methods are used to simulate a pseudo 2D bubble column using EL and EE techniques. The…

流体动力学 · 物理学 2017-06-20 Andreas Weber , Hans-Jörg Bart

Simulations of quantum transport in coherent conductors have evolved into mature techniques that are used in fields of physics ranging from electrical engineering to quantum nanoelectronics and material science. The most efficient…

介观与纳米尺度物理 · 物理学 2019-12-25 Mathieu Istas , Christoph Groth , Xavier Waintal

We present a Fourier finite element modeling of light emission of dipolar emitters coupled to infinitely long waveguides. Due to the translational symmetry, the three-dimensional (3D) coupled waveguide-emitter system can be decomposed into…

光学 · 物理学 2015-12-01 Yangxin Ou , David Pardo , Yuntian Chen

A novel radial-flux eddy-current coupler with interior permanent magnets (IPM) is proposed, providing higher demagnetization tolerance, making it well-suited for applications with limited accessibility, such as offshore wind generation.…

系统与控制 · 电气工程与系统科学 2024-11-01 Sajjad Mohammadi , Gholamreza Davarpanah , James L. Kirtley

We consider the Cauchy problem for the isentropic compressible Euler-Maxwell equations under general pressure laws in a three-dimensional periodic domain. For any smooth initial electron density away from the vacuum and smooth…

偏微分方程分析 · 数学 2023-05-23 Shunkai Mao , Peng Qu

In this work, we extend the meshfree generalized multiscale exponential integration framework introduced in Nikiforov et al. (2025) to the simulation of three-dimensional advection--diffusion problems in heterogeneous and high-contrast…

This study presents a novel methodology for integrating physics-informed loss functions into deep learning models using OpenFOAM's comprehensive data structures. Leveraging the robust and flexible capabilities of OpenFOAM's data structure…

流体动力学 · 物理学 2024-08-20 Yijin Mao , Yuwen Zhang

In this work, we present a numerical method that remedies the instabilities of the conventional FDTD approach for solving Maxwell's equations in a space-time dependent magneto-electric medium with direct application to the simulation of the…

光学 · 物理学 2015-06-18 Jason Cornelius , Jinjie Liu , Moysey Brio

We introduce a new implementation of the Immersed Boundary method in the finite-volume library OpenFOAM. The implementation is tailored to the simulation of temperature-dependent non-Newtonian polymeric flows in complex moving geometries,…

数值分析 · 数学 2024-08-12 G. Negrini , N. Parolini , M. Verani

There is a critical need for efficient and reliable active flow control strategies to reduce drag and noise in aerospace and marine engineering applications. While traditional full-order models based on the Navier-Stokes equations are not…

流体动力学 · 物理学 2022-11-02 Indu Kant Deo , Rui Gao , Rajeev Jaiman

A form of the conservation equations for fluid dynamics is presented, deduced using slightly less restrictive hypothesis than those necessary to obtain the Westervelt equation. This formulation accounts for full wave diffraction,…

流体动力学 · 物理学 2015-05-26 Roberto Velasco-Segura , Pablo L. Rendón

We present a variant of the immersed boundary method integrated with octree meshes for highly efficient and accurate Large-Eddy Simulations (LES) of flows around complex geometries. We demonstrate the scalability of the proposed method up…

We propose an effective and flexible way to implement 2D and 3D elastoplastic problems in MATLAB using fully vectorized codes. Our technique is applied to a broad class of the problems including perfect plasticity or plasticity with…

数值分析 · 数学 2018-09-07 Martin Čermák , Stanislav Sysala , Jan Valdman

We propose and test stable algorithms for the reconstruction of the internal conductivity of a biological object using acousto-electric measurements. Namely, the conventional impedance tomography scheme is supplemented by scanning the…

偏微分方程分析 · 数学 2015-05-20 Peter Kuchment , Leonid Kunyansky