11 papers · ranked by Valyu relevance
Jorge Belinha, Enrique Casarejos
This study presents a comprehensive multiscale analysis of sandwich beams with a polyurethane foam (PUF) core, delivering a numerical comparison between finite element methods (FEMs) and a meshless method: the radial point interpolation method (RPIM). This work aims to combine RPIM with homogenisation techniques for…
Anna Kucherova, Gbocho M. Terasaki, Selma Strango, Maxime Theillard
paradigm for solving elliptic PDEs Authors: ['Anna Kucherova' 'Gbocho M. Terasaki' 'Selma Strango' 'Maxime Theillard'] Searching for numerical methods that combine facility and efficiency, while remaining accurate and versatile, is critical. Often, irregular geometries challenge traditional methods that rely on…
Dawid Strzelczyk, Miha Rot, Gregor Kosec, Maciej Matyka
In this paper, two mesh-free CFD solvers for pore-scale fluid flow through porous media are considered, namely the Lattice Boltzmann Method with the two relaxation time collision term and the direct Navier-Stokes solver under the artificial compressibility limit. The porous media is built with a regular arrangement of…
Shantanu Shahane, S. P. Vanka
Computations of incompressible flows with all velocity boundary conditions require solution of a Poisson equation for pressure or pressure-corrections with all Neumann boundary conditions. Discretization of such a Poisson equation results in a rank-deficient ill-conditioned matrix of coefficients. When a…
Corrado Groth, Andrea Chiappa, Stefano Porziani, Pietro Salvini + 2 more
'Marco Evangelos Biancolini' 'Rui Li'] Thin plates are very often employed in a context of large displacements and rotations, for example, whenever the extreme flexibility of a body can replace the use of complicated kinematic pairs. This is the case of the flexible Printed Circuit Boards (PCBs) used, for example…
Sławomir Milewski, Mónica S. A. Oliveira
This study investigates steady-state heat conduction in materials with stepwise discontinuities in thermal conductivity, a phenomenon frequently encountered in layered composites, thermal barrier coatings, and electronic packaging. The problem is formulated for a 2D two-domain region, where each subdomain has a…
Imtiaz Ahmad, Ihteram Ali, Rashid Jan, Sahar Ahmed Idris + 2 more
'Mohamed Mousa' 'Muhammad Nadeem'] The study presents a meshless computational approach for simulating the three-dimensional multi-term time-fractional mobile-immobile diffusion equation in the Caputo sense. The methodology combines a stable Crank-Nicolson time-integration scheme with the definition of the Caputo…
D. Satyaprasad, Soumendra Nath Kuiry, S. Sundar
solving the shallow water equations Authors: ['D. Satyaprasad' 'Soumendra Nath Kuiry' 'S. Sundar'] - A shock-capturing meshless method is presented for solving the 2D shallow water equations on a highly variable topography. - The meshless coefficients are determined by applying the geometric conservation law and…
Miha Rot, Mitja Jančič, Gregor Kosec
- The total computational cost of the meshless approximation is reduced by using a less robust but computationally more efficient meshless setup on regular nodes and a more expensive, stable setup on scattered nodes. - Dimension independent node placing algorithm that covers regions near geometric details with…
Corrado Groth, Andrea Chiappa, Stefano Porziani, Marco Evangelos Biancolini + 3 more
'Marco Evangelos Biancolini' 'Emanuele Marotta' 'Pietro Salvini' 'Dimitrios Tzetzis'] Digital image correlation methods allow the determination of the displacement (and thus the strain) field of a target by picture comparisons, without the application of strain gauges or other invasive devices. Homologous sites are…
Pratik Suchde, Christian Leithäuser, Jörg Kuhnert, Stéphane Bordas
Meshfree Lagrangian frameworks for free surface flow simulations do not conserve fluid volume. Meshfree particle methods like SPH are not mimetic, in the sense that discrete mass conservation does not imply discrete volume conservation. On the other hand, meshfree collocation methods typically do not use any notion of…