Browsing by Author "Franci, Alessandro"
Now showing items 1-20 of 21
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3D regularized µ(I)-rheology for granular flows simulation
(2019-02)
Article
Open AccessThis paper proposes two regularized models of the µ(I)-rheology and shows their application to the numerical simulation of 3D dense granular flows. The proposed regularizations are inspired by the Papanastasiou and ... -
3D simulation of Vajont disaster. Part 1: numerical formulation and validation
(2020-12)
Article
Open AccessThis work presents a numerical method for the simulation of landslides generated impulse waves and its application to the historical Vajont case study. The computational tool is based on the Particle Finite Element Method ... -
3D simulation of Vajont disaster. Part 2: multi-failure scenarios
(2020-12)
Article
Open AccessPrediction of multi-hazard slope stability events requires an informed and judicious choice of the possible scenarios. An incorrect definition of landslide conditions in terms of expected failure volume, material behavior, ... -
A fully Lagrangian formulation for fluid-structure interaction problems with free-surface flows and fracturing solids
(2021-07)
Article
Restricted access - publisher's policyThis paper presents a novel coupled formulation for fluid-structure interaction (FSI) problems involving free-surface fluid flows, fracture phenomena, solid mutual contact and large displacements. The numerical formulation ... -
A Lagrangian nodal integration method for free-surface fluid flows
(2020-04)
Article
Open AccessWe present a Lagrangian nodal integration method for the simulation of Newtonian and non-Newtonian free-surface fluid flows. The proposed nodal Lagrangian method uses a finite element mesh to discretize the computational ... -
A Lagrangian–Eulerian procedure for the coupled solution of the Navier–Stokes and shallow water equations for landslide-generated waves
(Springer, 2022-07-30)
Article
Open AccessThis work presents a partitioned method for landslide-generated wave events. The proposed strategy combines a Lagrangian Navier Stokes multi-fluid solver with an Eulerian method based on the Boussinesq shallow water ... -
A particle finite element method (PFEM) for coupled thermal analysis of quasi and fully incompressible flows and fluid-structure interaction problems
(Springer, 2014)
Part of book or chapter of book
Restricted access - publisher's policyThis book presents and discusses mathematical models, numerical methods and computational techniques used for solving coupled problems in science and engineering. It takes a step forward in the formulation and solution of ... -
A state of the art review of the Particle Finite Element Method (PFEM)
(2020-11)
Article
Open AccessThe particle finite element method (PFEM) is a powerful and robust numerical tool for the simulation of multi-physics problems in evolving domains. The PFEM exploits the Lagrangian framework to automatically identify and ... -
Application of the Particle Finite Element Method (PFEM) to the numerical simulation of landslides
(Innovation Center on Natural Hazards and Infrastructure (ICONHIC), 2019)
Conference report
Restricted access - publisher's policyThis work explores the application of the Particle Finite Element Method (PFEM) to the simulation of landslides. The PFEM uses a Lagrangian description of the motion and an efficient remeshing algorithm to track accurately ... -
Combination of the finite element method and particle-based methods for predicting the failure of reinforced concrete structures under extreme water forces
(Elsevier, 2022-01)
Article
Restricted access - publisher's policyWe present a combination of the Finite Element Method (FEM), the Particle Finite Element Method (PFEM), and the Discrete Element Method (DEM) for modeling and analyzing the failure of reinforced concrete structures under ... -
Finite element formulation for compressible multiphase flows and its application to pyroclastic gravity currents
(2022-02)
Article
Restricted access - publisher's policyThe numerical modeling of compressible multiphase flows is of high interest for several engineering applications. In this work, we focus on the study of pyroclastic flows arising from volcanic eruptive events. An accurate ... -
Lagrangian finite element method with nodal integration for fluid–solid interaction
(Springer, 2021-03)
Article
Open AccessThis work presents a fully Lagrangian Finite Element Method (FEM) with nodal integration for the simulation of fluid–structure interaction (FSI) problems. The Particle Finite Element Method (PFEM) is used to solve the ... -
On the effect of standard PFEM remeshing on volume conservation in free-surface fluid flow problems
(Springer, 2017-07)
Article
Open AccessThe aim of this work is to analyze the remeshing procedure used in the particle finite element method (PFEM) and to investigate how this operation may affect the numerical results. The PFEM remeshing algorithm combines the ... -
On the effect of the bulk tangent matrix in partitioned solution schemes for nearly incompressible fluids
(John Wiley & Sons, 2015-04)
Article
Open AccessThe purpose of this paper is to study the effect of the bulk modulus on the iterative solution of free surface quasi-incompressible fluids using a mixed partitioned scheme. A practical rule to set up the value of a pseudo-bulk ... -
PFEM formulation for thermo-coupled FSI analysis: application to nuclear core melt accident
(2017-10)
Article
Open AccessThe aim of this paper is to present a Lagrangian formulation for thermo-coupled fluid–structure interaction (FSI) problems and to show its applicability to the simulation of hypothetical scenarios of a nuclear core melt ... -
PFEM–DEM for particle-laden flows with free surface
(Springer, 2020-01)
Article
Open AccessThis work proposes a fully Lagrangian formulation for the numerical modeling of free-surface particle-laden flows. The fluid phase is solved using the particle finite element method (PFEM), while the solid particles embedded ... -
Simulations of landslide wave generation and propagation using the particle finite element method
(Wiley, 2020-06)
Article
Open AccessIn this study, the impulse waves generated by highly mobile slides in large-scale flume experiments are reproduced numerically with the Particle Finite Element Method (PFEM). The numerical technique combines a Lagrangian ... -
Unified Lagrangian formulation for fluid and solid mechanics, fluid-structure interaction and coupled thermal problems using the PFEM
(Universitat Politècnica de Catalunya, 2015-05-07)
Doctoral thesis
Open AccessThe objective of this thesis is the derivation and implementation of a unified Finite Element formulation for the solution of uid and solid mechanics, Fluid-Structure Interaction (FSI) and coupled thermal problems. The ... -
Unified lagrangian formulation for fluid and solid mechanics, fluid-structure interaction and coupled thermal problems using the PFEM
(Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2015)
Book
Open AccessThe objective of this work is the derivation and implementation of a unifed Finite Element formulation for the solution of uid and solid mechanics, Fluid-Structure Interaction (FSI) and coupled thermal problems. -
Unified Lagrangian formulation for solid and fluid mechanics and FSI problems
(2016-01)
Article
Open AccessWe present a Lagrangian monolithic strategy for solving fluid-structure interaction (FSI) problems. The formulation is called Unified because fluids and solids are solved using the same solution scheme and unknown variables. ...
