83 citations · 350 across the 20 of their papers we have counts for
20 papers
Point Cloud Quality for Meshfree Methods
Mohsen Abdolahzadeh, Oleg Davydov, Isabel Michel +1
Mesh quality is very well studied and widely used to quantify a good mesh. In contrast, a systematic study of quality of meshfree point clouds is lacking. This gap makes it difficu…
Meshfree Snow Modelling using a Modified Cam-Clay Approach
Erik Schlesinger, Chaitanya Sanghavi, Jörg Kuhnert +2
Snow is a complex geomaterial whose macroscopic response is governed by density, temperature, and the topology of its evolving microstructure. Its mechanical behavior spans elastic…
Boundary treatment algorithms for meshfree RANS turbulence modeling
Mohan Padmanabha, Jörg Kuhnert, Nicolas R. Gauger +1
In this paper, we propose improved wall-treatment strategies for meshfree methods applied to turbulent flows. The goal is to enhance wall-function handling in simulations of high-R…
An Overview of Meshfree Collocation Methods
Tomas Halada, Serhii Yaskovets, Abhinav Singh +3
We provide a comprehensive overview of meshfree collocation methods for numerically approximating differential operators on continuously labeled unstructured point clouds. Meshfree…
An Eulerian Meshless Method for Two-phase Flows with Embedded Geometries
Anand S Bharadwaj, Pratik Suchde, Prapanch Nair
We present a novel Eulerian meshless method for two-phase flows with arbitrary embedded geometries. The spatial derivatives are computed using the meshless generalized finite diffe…
Adaptive coupling of 3D and 2D fluid flow models
Pratik Suchde
Similar to the notion of h-adaptivity, where the discretization resolution is adaptively changed, I propose the notion of model adaptivity, where the underlying model (the governin…
A Lagrangian meshfree model for solidification of liquid thin-films
Anand S Bharadwaj, Elisa Thiel, Pratik Suchde
In this paper, a new method to model solidification of thin liquid films is proposed. \blue{This method is targeted at applications like aircraft icing and tablet coating where the…
Higher-Order Generalized Finite Differences for Variable Coefficient Diffusion Operators
Heinrich Kraus, Jörg Kuhnert, Pratik Suchde
We present a novel approach of discretizing variable coefficient diffusion operators in the context of meshfree generalized finite difference methods. Our ansatz uses properties of…
Volume and Mass Conservation in Lagrangian Meshfree Methods
Pratik Suchde, Christian Leithäuser, Jörg Kuhnert +1
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 c…
Smart cloud collocation: geometry-aware adaptivity directly from CAD
Thibault Jacquemin, Pratik Suchde, Stéphane P. A. Bordas
Computer Aided Design (CAD) is widely used in the creation and optimization of various industrial systems and processes. Transforming a CAD geometry into a computational discretiza…
A Discrete Droplet Method for Modelling Thin Film Flows
Anand S Bharadwaj, Joerg Kuhnert, Stephane P. A. Bordas +1
In this paper, we present a new model to simulate the formation, evolution, and break up of a thin film of fluid flowing over a curved surface. Referred to as the discrete droplet…
A Meshfree Point Collocation Method for Elliptic Interface Problems
Heinrich Kraus, Jörg Kuhnert, Andreas Meister +1
We present a meshfree generalized finite difference method for solving Poisson's equation with a diffusion coefficient that contains jump discontinuities up to several orders of ma…
Meshfree One-Fluid Modelling of Liquid-Vapor Phase Transitions
Pratik Suchde, Heinrich Kraus, Benjamin Bock-Marbach +1
We introduce a meshfree collocation framework to model the phase change from liquid to vapor at or above the boiling point. While typical vaporization or boiling simulations focus…
A Meshfree Generalized Finite Difference Method for Solution Mining Processes
Isabel Michel, Tobias Seifarth, Joerg Kuhnert +1
Experimental and field investigations for solution mining processes have improved intensely in recent years. Due to today's computing capacities, three-dimensional simulations of p…
A Meshfree Lagrangian Method for Flow on Manifolds
Pratik Suchde
In this paper, we present a novel meshfree framework for fluid flow simulations on arbitrarily curved surfaces. First, we introduce a new meshfree Lagrangian framework to model flo…
A Fully Lagrangian Meshfree Framework for PDEs on Evolving Surfaces
Pratik Suchde, Joerg Kuhnert
We propose a novel framework to solve PDEs on moving manifolds, where the evolving surface is represented by a moving point cloud. This has the advantage of avoiding the need to di…
A Meshfree Generalized Finite Difference Method for Surface PDEs
Pratik Suchde, Joerg Kuhnert
In this paper, we propose a novel meshfree Generalized Finite Difference Method (GFDM) approach to discretize PDEs defined on manifolds. Derivative approximations for the same are…
Point Cloud Movement For Fully Lagrangian Meshfree Methods
Pratik Suchde, Joerg Kuhnert
In Lagrangian meshfree methods, the underlying spatial discretization, referred to as a point cloud or a particle cloud, moves with the flow velocity. In this paper, we consider di…
A Flux Conserving Meshfree Method for Conservation Laws
Pratik Suchde, Joerg Kuhnert, Simon Schroeder +1
Lack of conservation has been the biggest drawback in meshfree generalized finite difference methods (GFDMs). In this paper, we present a novel modification of classical meshfree G…
On Meshfree GFDM Solvers for the Incompressible Navier-Stokes Equations
Pratik Suchde, Joerg Kuhnert, Sudarshan Tiwari
Meshfree solution schemes for the incompressible Navier--Stokes equations are usually based on algorithms commonly used in finite volume methods, such as projection methods, SIMPLE…