Results 61 to 70 of about 258 (161)

Adjoint-based shape optimization of fin geometry for heat transfer enhancement in solidification problem

Journal of Thermal Science and Technology, 2016
In the present study, an adjoint-based shape-optimization method is formulated for heat transfer enhancement in liquid-solid phase change problems, in which heat conduction is dominant.
Kenichi MORIMOTO, Hidenori KINOSHITA, Yuji SUZUKI   +2 more
doaj   +1 more source

Elastic transient analysis with MLPG(LBIE) method and local RBFs

Computer Modeling in Engineering & Sciences, 2009
A Meshless Local Petrov-Galerkin (MLPG) method based on Local Boundary Integral Equation (LBIE) techniques is employed here for the solution of transient elastic problems with damping. The Radial Basis Functions (RBF) interpolation scheme is exploited for the meshless representation of displacements throughout the computational domain.
Sellountos, E. J., Sequeira, A., Polyzos, D.   +2 more
openaire   +1 more source

Analysis of Beams with Transversal Gradations of the Young's Modulus and Variable Depths by the Meshless Method

Slovak Journal of Civil Engineering, 2014
A numerical analysis based on the meshless local Petrov- Galerkin (MLPG) method is proposed for a functionally graded material FGM (FGMfunctionally graded material) beam.
Sátor Ladislav, Sládek Vladimír, Sládek Ján   +2 more
doaj   +1 more source

A Local Integral Equation Formulation Based on Moving Kriging Interpolation for Solving Coupled Nonlinear Reaction-Diffusion Equations

Advances in Mathematical Physics, 2014
The meshless local Pretrov-Galerkin method (MLPG) with the test function in view of the Heaviside step function is introduced to solve the system of coupled nonlinear reaction-diffusion equations in two-dimensional spaces subjected to Dirichlet and ...
Kanittha Yimnak, Anirut Luadsong
doaj   +1 more source

Numerical approximation of the fractional HIV model using the meshless local Petrov–Galerkin method

Advances in Difference Equations, 2019
This paper deals with the model of fractional HIV-1 infection of CD4+T cells transformation with homogeneous Neumann boundary conditions. Numerical methods for solving fractional time differential equations are developed with Caputo’s definition.
Kunwithree Phramrung, Anirut Luadsong, Nitima Aschariyaphotha   +2 more
doaj   +1 more source

A new Singular/Hypersingular MLPG (LBIE) method for 2D elastostatics

Computer Modeling in Engineering & Sciences, 2005
A new meshless local Petrov-Galerkin (MLPG) type method based on local boundary integral equation (LBIE) considerations is proposed for the solution of elastostatic problems. It is called singular/hypersingular MLPG (LBIE) method since the representation of the displacement field at the internal points of the considered structure is accomplished with ...
Sellountos, E. J., Vavourakis, V., Polyzos, D.   +2 more
openaire   +2 more sources

Two- and Three-Dimensional Transient Thermoelastic Analysis by the MLPG Method

Computer Modeling in Engineering & Sciences, 2009
The meshless local Petrov-Galerkin (MLPG) method for transient linear thermoelastic analysis is presented. Orthotropic material properties are considered here. In uncoupled thermoelasticity, the temperature field is not influenced by displacements. Therefore, in the first step, the heat conduction equation is solved for the temperature distribution in ...
Sladek, J., Sladek, V., Solek, P., Tan, C. L., Zhang, Ch.   +4 more
openaire   +2 more sources

A TRULY-MESHLESS GALERKIN METHOD, THROUGH THE MLPG "MIXED" APPROACH

Journal of Marine Science and Technology, 2011
A truly meshless Galerkin method is formulated in the present study, as a special case of the general Meshless Local Petrov-Galerkin (MLPG) ”Mixed” approach. The Galerkin method is implemented as a truly meshless method, for solving elasto-static problems. In the present Galerkin method, the test function is chosen to be the same as the trial function,
Zhidong Han, Satya N. Atluri
openaire   +2 more sources

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

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  

Topology-optimization of Structures Based on the MLPG Mixed Collocation Method

Computer Modeling in Engineering & Sciences, 2008
The Meshless Local Petrov-Galerkin (MLPG) "mixed collocation'' method is applied to the problem of topology-optimization of elastic structures. In this paper, the topic of compliance minimization of elastic structures is pursued, and nodal design variables which represent nodal volume fractions at discretized nodes are adopted.
Shu Li, S. N. Atluri
openaire   +1 more source