Results 11 to 20 of about 573 (198)

Adaptive Meshless Local Petrov-Galerkin Method with Variable Domain of Influence in 2D Elastostatic Problems [PDF]

Civil Engineering Dimension, 2008
A meshless local Petrov-Galerkin (MLPG) method that employs polygonal sub-domains constructed from several triangular patches rather than the typically used circular sub-domains is presented.
Pamuda Pudjisuryadi
doaj   +5 more sources

A modified scaled boundary method to analyze structural elements [PDF]

Numerical Methods in Civil Engineering, 2023
It is possible to resolve numerical issues by utilizing a method known as the conventional scaled boundary finite element method (also known as SBFEM), which is a dimension reduction technique.
Ali Zare, Ramin Vafaei Poursorkhabi, Alireza Alizadeh Majdi, Fariba Behrouz Sarand   +3 more
doaj   +1 more source

Estimation of Parameters in Groundwater Modeling by Particle Filter linked to the meshless local Petrov-Galerkin Numerical Method [PDF]

Journal of Hydraulic Structures, 2021
The present study employs a mathematical method, i.e. Particle Filter (PF), to accurately estimate the parameters of three standard aquifers. The method is linked to a new developed numerical method, i.e.
Ali Mohtashami, S.Arman Hashemi Monfared, Gholamreza` Azizyan, Abolfazl Akbarpour   +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

Numerical 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

International 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, Benjamin F. Zwick, Theo Philippe Lavier, Vassilios C. Loukopoulos, Athanassios A. Dimas, Adam Wittek, Karol Miller   +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

Advances 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, Younes Mohammadi, Mohammad Mahdi Kheirikhah, Anish Maridhas   +3 more
wiley   +1 more source

Effects of Chemical Reaction and Joule Heating on MHD Generalized Couette Flow between Two Parallel Vertical Porous Plates with Induced Magnetic Field and Newtonian Heating/Cooling

International Journal of Mathematics and Mathematical Sciences, Volume 2023, Issue 1, 2023., 2023
In this article, the effects of chemical reaction and Joule heating on MHD generalized Couette flow between two vertical porous plates with induced magnetic field and Newtonian heating/cooling have been investigated. The mathematical model used for the MHD generalized Couette flow takes into account the effect of viscous dissipation.
Jumanne Mng’ang’a, Saranya Shekar
wiley   +1 more source

Generalized coordinate smoothed particle hydrodynamics with an overset method in total Lagrangian formulation

International Journal for Numerical Methods in Engineering, Volume 123, Issue 19, Page 4518-4544, 15 October 2022., 2022
Abstract This study proposes a generalized coordinate smoothed particle hydrodynamics (GCSPH) method coupled with an overset method using the total Lagrangian formulation for solving large deformation and crack propagation problems. In GCSPH, the physical space is decomposed into multiple domains, each of which is mapped to a generalized space to avoid
Huachao Deng, Yoshiaki Kawagoe, Yoshiaki Abe, Kenjiro Terada, Tomonaga Okabe   +4 more
wiley   +1 more source

Mechanical Properties of Functionally Graded Concrete Lining for Deep Underground Structures

Advances in Civil Engineering, Volume 2022, Issue 1, 2022., 2022
With the mining depth of coal resources increasing, the thickness of traditional lining for deep mines becomes large. The bearing capacity of the outer lining cannot be fully utilized, so a new type of functionally graded lining structure (FGL) with radial Young’s modulus varying in gradient is proposed.
De-Chun Li, Chong Xu, Zhen-Dong Cui, Jin-Ming Chen, Xiang-Qing Xu, Tong-Tong Zhang, Zhao-Wei Zhang, Gang Song, Guojun Wu   +8 more
wiley   +1 more source

Qanat's hydraulic harim determination using the meshless numerical method

Journal of Hydroinformatics, 2023
Qanat is an ancient water harvesting technology which is used for irrigation, agriculture and drinking in many countries of the world. A key element of preserving this heritage is calculating their protection area.
Ali Mohtashami, Abdullah Saif Al-Ghafri, Abolfazl Akbarpour   +2 more
doaj   +1 more source