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1-20 OF 79 RESULTS FOR
COMSOL Multiphysics computer program
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1
Journal Article
Geometry optimization of an electrochemical reactor for bleaching kaolin
Journal: Clay Minerals
Published: 01 September 2022
Clay Minerals (2022) 57 (3-4): 183–191.
.... This is necessary during the escalation process to reach the pilot-scale level. The study was carried out using computer-aided engineering in the COMSOL Multiphysics computer program and by analysing the distribution of the electric potential and the electric current of the geometries considered while performing...
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Journal Article
Influence of Layer Transition Zone on Rainfall-Induced Instability of Multilayered Slope
Journal: Lithosphere
Publisher: GSW
Published: 10 November 2021
Lithosphere (2021) 2021 (Special 4): 2277284.
... 2021 Copyright © 2021 Zhi Dou et al. Exclusive Licensee GeoScienceWorld. Distributed under a Creative Commons Attribution License (CC BY 4.0). National Natural Science Foundation of China 10.13039/501100001809 41877171 National Basic Research Program of China (973 Program...
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Journal Article
The Influence of Pore Structure of the Core-Scale Fracture-Controlled Matrix Unit on Imbibition: Model Construction and Definition of the Fractal Coefficient
Journal: Lithosphere
Publisher: GSW
Published: 25 May 2022
Lithosphere (2022) 2022 (1): 6245345.
... porosity and pore parameters are concerned, while pore size can be ignored. The specific steps were as follows. Using COMSOL Multiphysics software, Figure 2 was imported and then exported to DXF format recognized by AutoCAD, and the pore outline was extracted (Figure 3 (a)). Figure 3 Two...
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Journal Article
Calibration of a Piezoelectric Transducer Through Laser Measurements and Numerical Simulation
Published: 10 April 2019
Journal of Environmental and Engineering Geophysics (2019) 24 (1): 39–48.
... the transducer system are unavailable ( Schwepp et al., 1963 ). In the experimental solution, measured input and output signals are used to obtain the TF. A commercially available finite element program ( COMSOL Multiphysics, 2014 ) was used to simulate the piezoelectric transducer. Three interfaces were...
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Journal Article
Numerical Study on Urban Infrastructure Diagnosis in Laterally Heterogenous Soils Using Resistivity and Ground Penetrating Radar Techniques
Published: 20 April 2023
Journal of Environmental and Engineering Geophysics (2022) 27 (4): 233–240.
... to enabling costly practices in asset management. The numerical modelling platforms used for GPR and ERP in this work were the open-source gprMax software package and the commercial Comsol Multiphysics © software respectively. Urban setting can be a very complex environment with regards to how...
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Journal Article
Detecting Defects in Steel Reinforcement Using the Passive Magnetic Inspection Method
Published: 01 June 2017
Journal of Environmental and Engineering Geophysics (2017) 22 (2): 153–166.
... understand the magnetic flux density of small hole in steel bar, a numerical simulation is conducted using Comsol Multiphysics V.4.4 which is based on finite element method (FEM) (COMSOL Multiphysics ® . 2013). A steel reinforcement rod, with a diameter of 1.6 cm and three small holes (defects) in different...
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Journal Article
Retrieving 2D structures from surface-wave data by means of space-varying spatial windowing
Journal: Geophysics
Publisher: Society of Exploration Geophysicists
Published: 18 June 2012
Geophysics (2012) 77 (4): EN39–EN51.
... model (Figure 12 ). We produced the third synthetic data set by using COMSOL Multiphysics again. The synthetic model is a 2D linear, elastic isotropic model. Its geometry and V S characteristics are displayed in Figure 17 ; an upper 2-m-thick layer tops a second layer whose...
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Journal Article
Electromagnetic telemetry simulation in vertical drillings
Journal: Geophysics
Publisher: Society of Exploration Geophysicists
Published: 13 October 2020
Geophysics (2020) 85 (6): E207–E219.
... derived from a commercial finite-element solver, COMSOL-Multiphysics. Furthermore, the efficiency of this method is demonstrated by comparing its computational costs with those of COMSOL. The simulated EM telemetry in a known geologic setting is then compared with a field data example. These comparisons...
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Journal Article
Investigating the effective resistivity of reinforced concrete waste storage tanks at the Hanford Site
Journal: Geophysics
Publisher: Society of Exploration Geophysicists
Published: 19 November 2021
Geophysics (2022) 87 (1): B31–B43.
... distribution is known. COMSOL is a multiphysics-capable differential equation numerical solver that consists of a variety of physics-specific modules to solve for potential fields and fluxes within a model system. Specifically, we used the AC/DC module, which solves Maxwell’s equations in a steady state...
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Journal Article
Microscale Simulations of NMR Relaxation in Porous Media Considering Internal Field Gradients All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher.
Journal: Vadose Zone Journal
Publisher: Soil Science Society of America
Published: 01 November 2010
Vadose Zone Journal (2010) 9 (4): 846–857.
... on the model design, the computational time was generally in the range of several seconds up to a few minutes. We used COMSOL Multiphysics, a commercial program based on finite elements that includes simulation toolboxes for general convection and diffusion processes in arbitrary three-dimensional...
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Journal Article
Unsaturated Flow Influences the Response of Leaky Aquifer to Earth Tides
Journal: Lithosphere
Publisher: GSW
Published: 24 December 2021
Lithosphere (2021) 2021 (Special 3): 6415482.
... into a Neumann condition when the watertable is below the surface, i.e., k 3 θ / h c ➔ 0 , and into a Dirichlet condition when the watertable attains the ground surface, i.e., k 3 θ / h c ➔ ∞ [ 26 ]. We employ COMSOL Multiphysics to solve...
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Includes: Supplemental Content
Journal Article
The effect of dielectric permittivity on the fields radiated from a radio-frequency electric dipole in a homogeneous whole space
Journal: Geophysics
Publisher: Society of Exploration Geophysicists
Published: 18 February 2016
Geophysics (2016) 81 (2): K1–K8.
... constant on RIM data. More rigorous studies of dielectric effects could be undertaken using finite-element simulations such as COMSOL Multiphysics ( Li and Smith, 2015 ) or with the method described by Dorn et al. (2008) . To investigate the RIM signal, we developed a whole-space modeling program...
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Journal Article
On the effect of electrode finiteness in small-scale electrical resistivity imaging
Journal: Geophysics
Publisher: Society of Exploration Geophysicists
Published: 08 November 2018
Geophysics (2018) 83 (6): EN39–EN52.
... the finiteness of the electrodes (as well as the shorting effect). The geometric design of the electrodes and the half-space was done using Comsol Multiphysics 4.3b combined with the F3DM MATLAB script 3.06 implemented by Clément and Moreau (2016) . This script automatically built the 3D geometry based...
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Journal Article
A Study on the Largest Hydraulic Fracturing Induced Earthquake in Canada: Numerical Modeling and Triggering Mechanism
Publisher: Seismological Society of America
Published: 23 February 2021
Bulletin of the Seismological Society of America (2021) 111 (3): 1392–1404.
... condition is shown in Fig. 3a ). We then add the time‐dependent model with the poroelasticity multiphysics module in COMSOL, which uses the elastic stress and pore pressure solutions from the stationary model as the initial condition. The gCAP method estimates the full moment tensor through a grid...
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Includes: Supplemental Content
Journal Article
Electrical Resistivity Imaging near Abandoned Steel Oil Wells: Five Case Studies, USA
Published: 01 December 2020
Journal of Environmental and Engineering Geophysics (2020) 25 (4): 545–556.
... range between 2 and 8. These are good to excellent values ( AGI, 2014 ). To better understand the adverse effects of steel wells (or vertical conductors) on the 2D resistivity data from DD and inverse SLB arrays, we conducted synthetic models using COMSOL Multiphysics (V. 5.5) to create forward...
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Journal Article
A novel approach of using existing implementations of constitutive material models in any numerical codes interfacing with MFront
Journal: Geoenergy
Publisher: Geological Society of London
Published: 25 January 2024
Geoenergy (2024) 2 (1): geoenergy2023-018.
... to be programmed by the user and linked to the code at runtime. A DLL is a software library whose functions are loaded into the memory by a programme, as needed, during its execution. This is in contrast to static or shared software libraries whose functions are loaded into memory at compile-time during...
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Journal Article
Seismicity Rate Surge on Faults after Shut‐in: Poroelastic Response to Fluid Injection
Publisher: Seismological Society of America
Published: 26 June 2018
Bulletin of the Seismological Society of America (2018) 108 (4): 1889–1904.
... ). Injection‐induced seismicity is one of the key issues for public acceptance of CO 2 injection into the geological formation ( International Energy Agency Greenhouse Gas R&D Programme [IEAGHG], 2013 ; U.S. Nuclear Regularity Commission [NRC], 2013 ). Attendant risks include (1) mechanical...
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Journal Article
Normal fault reactivation induced by hydraulic fracturing: Poroelastic effects
Journal: Interpretation
Publisher: Society of Exploration Geophysicists
Published: 23 May 2024
Interpretation (2024) 12 (3): SD17–SD36.
..., 2003 ). The elastic deformation and Darcy flow equations can also be solved iteratively using a numerical finite-element mesh in the COMSOL Multiphysics® Software Program (2020) , as conducted by Hui et al. (2021b , 2021c) for an induced seismicity problem. Another approach is based on the distinct...
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Journal Article
Trial-and-error modeling of ground-airborne electromagnetic data in the Yishu Faulting Basin, China
Journal: Geophysics
Publisher: Society of Exploration Geophysicists
Published: 22 February 2024
Geophysics (2024) 89 (2): B173–B186.
... are 15.33 GB and 146.43 s, respectively. The GAFEM responses (H x , H y , and H z components measured at an altitude of 250 m for a frequency of 10 Hz) for model 1 and its background model were computed using our new code and compared with the equivalent responses calculated by COMSOL Multiphysics software...
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Journal Article
Hydrogeophysical Investigations at Hidden Dam, Raymond, California
Published: 01 December 2011
Journal of Environmental and Engineering Geophysics (2011) 16 (4): 145–164.
.... The finite element modeling package, COMSOL Multiphysics, is utilized to solve the steady-state Richards equation for variably saturated flow ( Freeze and Cherry, 1979 ), where the van Genuchten ( van Genuchten, 1980 ) parameterization is used to describe the saturation-dependent hydraulic properties...
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