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- research-articleMarch 2025
Analysis of a Crank–Nicolson fast element-free Galerkin method for the nonlinear complex Ginzburg–Landau equation
Journal of Computational and Applied Mathematics (JCAM), Volume 457, Issue Chttps://doi.org/10.1016/j.cam.2024.116323AbstractA fast element-free Galerkin (EFG) method is proposed in this paper for solving the nonlinear complex Ginzburg–Landau equation. A second-order accurate time semi-discrete system is presented by using the Crank–Nicolson scheme for the temporal ...
- research-articleFebruary 2025
A space-time generalized finite difference scheme for long wave propagation based on high-order Korteweg-de Vries type equations
Mathematics and Computers in Simulation (MCSC), Volume 228, Issue CPages 298–312https://doi.org/10.1016/j.matcom.2024.09.012AbstractIn this paper, the space-time generalized finite difference scheme is applied to solve the nonlinear high-order Korteweg-de Vries equations in multiple dimensions. The proposed numerical scheme combines the space-time generalized finite ...
- research-articleOctober 2024
Numerical simulation of 3D vorticity dynamics with the Diffused Vortex Hydrodynamics method
Mathematics and Computers in Simulation (MCSC), Volume 225, Issue CPages 528–544https://doi.org/10.1016/j.matcom.2024.06.003AbstractIn this paper the three-dimensional extension of the Diffused Vortex Hydrodynamics (DVH) is discussed along with free vorticity dynamics simulations. DVH is a vortex particle method developed in-house and widely validated in a 2D framework. The ...
- research-articleSeptember 2024
A meshless superconvergent stabilized collocation method for linear and nonlinear elliptic problems with accuracy analysis
Applied Mathematics and Computation (APMC), Volume 477, Issue Chttps://doi.org/10.1016/j.amc.2024.128801AbstractThe stabilized collocation method (SCM) is a promising meshless collocation method that can overcome the instability defects in the classical direct collocation method. To improve the performance of the SCM, a superconvergent stabilized ...
Highlights- A superconvergent stabilized collocation method is developed for linear and nonlinear elliptic problems.
- Theoretical accuracy of the method is analyzed detailedly.
- Theoretical and numerical results reveal that the method possesses ...
- research-articleSeptember 2024
Analysis of a fast element-free Galerkin method for the multi-term time-fractional diffusion equation
Mathematics and Computers in Simulation (MCSC), Volume 223, Issue CPages 677–692https://doi.org/10.1016/j.matcom.2024.05.008AbstractIn this paper, a fast element-free Galerkin (EFG) method is proposed for solving the multi-term time-fractional diffusion equation (TFDE). Through the use of the multi-term L 2 − 1 σ formula to discrete the multi-term Caputo time-fractional ...
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- research-articleJuly 2024
A boundary point interpolation method for acoustic problems with particular emphasis on the calculation of Cauchy principal value integrals
AbstractA boundary point interpolation method (BPIM) is presented in this paper for numerical solving acoustic problems. The BPIM is a boundary-type meshless method that combines the point interpolation technique for constructing approximate functions ...
Highlights- An efficient BIEs-based method is presented for meshless analysis of acoustic problems.
- Clenshaw-Curtis integration technique is proposed to calculate regular and singular integrals on quadratic integration cells.
- Three numerical ...
- research-articleJune 2024
Forced vibrations of a cantilever beam using radial point interpolation methods: A comparison study
Computers & Mathematics with Applications (CMAP), Volume 163, Issue CPages 14–26https://doi.org/10.1016/j.camwa.2024.03.011AbstractMeshless methods are a type of numerical method used to simulate continuum mechanics problems. These methods have been applied to several types of problems, there are a few works using meshless method focused on dynamic problems, but most works ...
- research-articleDecember 2023
A new meshless local integral equation method
Applied Numerical Mathematics (APNM), Volume 194, Issue CPages 44–58https://doi.org/10.1016/j.apnum.2023.08.007AbstractThis paper proposes a novel meshless local integral equation (LIE) method for numerical solutions of two and three-dimensional Poisson equations. The proposed method can be regarded as a new variant of the meshless local Petrov-...
- research-articleNovember 2023
On optimal radius of sub-domains in meshless LBIE method
Mathematics and Computers in Simulation (MCSC), Volume 213, Issue CPages 145–160https://doi.org/10.1016/j.matcom.2023.06.006AbstractLocal weak based meshless methods construct weak form of governing equations on local sub-domains. In two dimensional domains, for the simplicity of computations, these sub-domains are taken as circles. In these methods, the optimal radius of sub-...
- research-articleAugust 2023
Meshless Galerkin analysis of the generalized Stokes problem
Computers & Mathematics with Applications (CMAP), Volume 144, Issue CPages 164–181https://doi.org/10.1016/j.camwa.2023.05.027AbstractThis paper proposes and analyzes a stabilized element-free Galerkin (EFG) method for meshless Galerkin analysis of the generalized Stokes problem. The Nitsche-type weak form of the generalized Stokes problem is derived by adopting Nitsche's ...
- research-articleApril 2023
Numerical solution of Korteweg–de Vries equation using discrete least squares meshless method
Mathematics and Computers in Simulation (MCSC), Volume 206, Issue CPages 65–76https://doi.org/10.1016/j.matcom.2022.11.001AbstractIn this study, a meshless approach called Discrete Least Squares Meshless is used to solve the third-order nonlinear Korteweg–de Vries equation numerically. In shallow water, the Korteweg–de Vries equation illustrates the ...
Highlights- A truly meshless method is applied for the solution of Korteweg–de Vries equation.
- research-articleJanuary 2023
A novel meshless method based on the virtual construction of node control domains for porous flow problems
Engineering with Computers (ENGC), Volume 40, Issue 1Pages 171–211https://doi.org/10.1007/s00366-022-01776-6AbstractIn this paper, a novel meshless method that can handle porous flow problems with singular source terms is developed by virtually constructing node control domains. By defining a connectable node cloud, this method uses the integral of the ...
- research-articleJanuary 2023
Analysis of an element-free Galerkin method for the nonlinear Schrödinger equation
Mathematics and Computers in Simulation (MCSC), Volume 203, Issue CPages 538–552https://doi.org/10.1016/j.matcom.2022.06.031AbstractAn element-free Galerkin method (EFGM) is proposed for meshfree numerical analysis of the nonlinear Schrödinger equation. In this method, an explicit linearized scheme with second-order time convergence is proposed to handle the ...
- research-articleDecember 2022
A network element method for heterogeneous and anisotropic diffusion-reaction problems
Journal of Computational Physics (JOCP), Volume 470, Issue Chttps://doi.org/10.1016/j.jcp.2022.111597AbstractThe network element method (NEM), a variational numerical method where the usual mesh was replaced by a discretization network has been recently introduced for the basic Poisson problem. A coercive and stable numerical scheme was ...
Highlights- The NEM is extended to heterogeneous and anisotropic diffusion-reaction.
- ...
- research-articleDecember 2022
The Radial Point Interpolation Method combined with a bi-directional structural topology optimization algorithm
Engineering with Computers (ENGC), Volume 38, Issue 6Pages 5137–5151https://doi.org/10.1007/s00366-021-01556-8AbstractProjecting reduced-weight components with increased performance is a continuous engineering challenge, especially in the aircraft industry, where fuel consumption, emissions, and performance are highly dependent on structure weight. Nowadays, ...
- research-articleNovember 2022
Acceleration of RBF-FD meshless phase-field modelling of dendritic solidification by space-time adaptive approach
Computers & Mathematics with Applications (CMAP), Volume 126, Issue CPages 77–99https://doi.org/10.1016/j.camwa.2022.09.008Highlights- A novel meshless approach for phase-field modelling of dendritic growth.
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A novel adaptive numerical approach is developed for an accurate and computationally efficient phase-field modelling of dendritic solidification. The adaptivity is based on the dynamic quadtree domain decomposition. A quadtree ...
- research-articleOctober 2022
A local meshless method for transient nonlinear problems: Preliminary investigation and application to phase-field models
Computers & Mathematics with Applications (CMAP), Volume 124, Issue CPages 163–187https://doi.org/10.1016/j.camwa.2022.08.027AbstractTransient nonlinear problems play an important role in many engineering problems. Phase-field equations, including the well-known Allen-Cahn and Cahn-Hilliard equations, fall in this category, and have applications in cutting-edge ...
- research-articleOctober 2022
An adaptive variational multiscale element free Galerkin method for convection–diffusion equations
Engineering with Computers (ENGC), Volume 38, Issue Suppl 4Pages 3373–3390https://doi.org/10.1007/s00366-021-01469-6AbstractFor very strong convection-dominated problems, stabilized meshless methods such as variational multiscale element-free Galerkin (VMEFG) method may still produce over- and under-shootings near the boundary or interior layers. In this paper, an ...
- research-articleSeptember 2022
An arbitrary Lagrangian-Eulerian SPH-MLS method for the computation of compressible viscous flows
Journal of Computational Physics (JOCP), Volume 464, Issue Chttps://doi.org/10.1016/j.jcp.2022.111172Highlights- A high-accurate meshless method for compressible viscous flows is presented.
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In this work we present a high-accurate discretization to solve the compressible Navier-Stokes equations using an Arbitrary Lagrangian-Eulerian meshless method (SPH-MLS), which can be seen as a general formulation that includes some ...
- research-articleSeptember 2022
Computational simulation of cellular proliferation using a meshless method
Computer Methods and Programs in Biomedicine (CBIO), Volume 224, Issue Chttps://doi.org/10.1016/j.cmpb.2022.106974Highlights- Simulation of cell proliferation using a new phenomenological law solved by the Radial Point Interpolation Method (RPIM), a meshless method.
During cell proliferation, cells grow and divide in order to obtain two new genetically identical cells. Understanding this process is crucial to comprehend other biological processes. Computational ...