Results 11 to 20 of about 1,967 (199)

Monitoring network design with MLPG-TLBO hybrid model (case study Birjand, Iran)

open access: yesApplied Water Science, 2022
As the groundwater quantitative monitoring aimed to determine the factors affecting the aquifer behavior plays an important role in its regional management, studying the temporal and spatial groundwater level variations requires a comprehensive ...
Nahid Majidi Khalilabad   +3 more
doaj   +1 more source

A novel local Hermite radial basis function‐based differential quadrature method for solving two‐dimensional variable‐order time fractional advection–diffusion equation with Neumann boundary conditions

open access: yesNumerical Methods for Partial Differential Equations, Volume 39, Issue 4, Page 2998-3019, July 2023., 2023
Abstract A novel Hermite radial basis function‐based differential quadrature (H‐RBF‐DQ) method is presented in this paper based on 2D variable order time fractional advection–diffusion equations with Neumann boundary conditions. The proposed method is designed to treat accurately for derivative boundary conditions, which considerably improve the ...
Jianming Liu, Xin Kai Li, Xiuling Hu
wiley   +1 more source

An immersed boundary vector potential‐vorticity meshless solver of the incompressible Navier–Stokes equation

open access: yesInternational Journal for Numerical Methods in Fluids, Volume 95, Issue 1, Page 143-175, January 2023., 2023
We present a new strong‐form meshless solver combined with the boundary condition‐enforced immersed boundary method for the numerical solution of the nonstationary, incompressible, viscous Navier–Stokes equations in their stream function‐vorticity (in 2D) and vector potential‐vorticity (in 3D) formulation.
George C. Bourantas   +6 more
wiley   +1 more source

Size‐Dependent Thermoelastic Behavior Analysis of Functionally Graded Magneto‐Electro‐Elastic Cylindrical Shells Based on Modified Couple Stress Theory

open access: yesAdvances in Materials Science and Engineering, Volume 2023, Issue 1, 2023., 2023
In this article, the influence of important parameters on the size‐dependent thermoelastic behavior of functionally graded magneto‐electro‐thermo‐elastic microcylinders (FGMEE) is studied by means of modified stress couple theory and under the influence of combined mechanical‐thermal‐magnetic loads.
Sajad Golchin Khazari   +3 more
wiley   +1 more source

Adaptive Numerical Method for Approximation of Traffic Flow Equations

open access: yesJournal of Advanced Transportation, Volume 2022, Issue 1, 2022., 2022
For a long time now, traffic equations have been considered, and different modeling has been done for it. In this article, we work on the macroscopic model, especially the most famous light model. Because these models are among the stiff and shocking problems, theoretical methods do not give good answers to these problems.
Neda Najafzadeh   +3 more
wiley   +1 more source

Fracture and Fatigue Analyses of Cracked Structures Using the Iterative Method

open access: yesGeofluids, Volume 2021, Issue 1, 2021., 2021
It is a quite challenging subject to efficiently perform fracture and fatigue analyses for complex structures with cracks in engineering. To precisely and efficiently study crack problems in practical engineering, an iterative method is developed in this study.
Longgang Tian, Ziling Cheng, Feng Xiong
wiley   +1 more source

A New Sinusoidal Shear Deformation Theory for Static Bending Analysis of Functionally Graded Plates Resting on Winkler–Pasternak Foundations

open access: yesAdvances in Civil Engineering, Volume 2021, Issue 1, 2021., 2021
In this article, a new sinusoidal shear deformation theory was developed for static bending analysis of functionally graded plates resting on elastic foundations. The proposed theory used an undefined integral term to reduce the number of the unknown to four without any shear correction factors.
Pham Minh Phuc   +2 more
wiley   +1 more source

Numerical Investigation on Improving the Computational Efficiency of the Material Point Method

open access: yesMathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021
Based on the basic theory of the material point method (MPM), the factors affecting the computational efficiency are analyzed and discussed, and the problem of improving calculation efficiency is studied. This paper introduces a mirror reflection boundary condition to the MPM to solve axisymmetric problems; to improve the computational efficiency of ...
Jingxin Ma   +5 more
wiley   +1 more source

Modelling Elasto-Plasticity Using the Hybrid MLPG Method [PDF]

open access: yesComputer Modeling in Engineering & Sciences, 2010
Meshless methods continue to generate strong interest as alternatives to conventional finite element methods. One major area of application as yet relatively unexplored with meshless methods is elasto-plasticity. In this paper we extend a novel numerical method, based on the Meshless Local Petrov-Galerkin (MLPG) method, to the modelling of elasto ...
Heaney, C. E.   +2 more
openaire   +1 more source

Numerical Approximation of One‐ and Two‐Dimensional Coupled Nonlinear Schrödinger Equation by Implementing Barycentric Lagrange Interpolation Polynomial DQM

open access: yesMathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021
In this paper, a new numerical method named Barycentric Lagrange interpolation‐based differential quadrature method is implemented to get numerical solution of 1D and 2D coupled nonlinear Schrödinger equations. In the present study, spatial discretization is done with the aid of Barycentric Lagrange interpolation basis function.
Varun Joshi   +5 more
wiley   +1 more source

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