FEniCS-HPC: Coupled Multiphysics in Computational Fluid Dynamics

Hoffman, Johan; Jansson, Johan; Degirmenci, Niyazi Cem; Spühler, Jeannette Hiromi; Abreu, Rodrigo Vilela de; Jansson, Niclas; Larcher, Aurélien

doi:10.1007/978-3-319-53862-4_6

“…The computational results we report in this article are generated from an implementation in the open source software FEniCS-HPC, which shows near optimal parallel scaling up to tens of thousands of compute cores. 54,55 Specifically, the partial differential equations to solve are the conservation laws for the unified fluid-structure continuum, elasticity equations for mesh smoothing, and Eikonal equations to determine distance fields between the structures of the model.…”

Section: Methodsmentioning

confidence: 99%

“…In this article, the reported simulation results are generated by a software implementation in FEniCS-HPC, 54,55 based on a hybrid MPI/OpenMP parallel programming model and the PETSc linear algebra library. 65 The hardware platform was Beskow, a Cray XC40 system, where each node has two cpus (Intel E5-2698v3) with 16 cores, and the simulations are performed based on unicorn-0.1.3-hpc and dolfin-0.8.4-hpc, both open source software libraries which are accessible through the Bitbucket repository https://bitbucket.org/fenics-hpc/.…”

Section: Methodsmentioning

confidence: 99%

An interface‐tracking unified continuum model for fluid‐structure interaction with topology change and full‐friction contact with application to aortic valves

Spühler

¹

,

Hoffman

²

2020

Numerical Meth Engineering

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An interface tracking finite element methodology is presented for 3D turbulent flow fluid-structure interaction, including full-friction contact and topology changes, with specific focus on heart valve simulations. The methodology is based on a unified continuum fluid-structure interaction model, which is a monolithic approach, where the fundamental conservation laws are formulated for the combined fluid-structure continuum. Contact is modeled by local phase changes in the unified continuum, and computational results show the promise of the approach. The core algorithms are all based on the solution of partial differential equations with standard finite element methods, and hence any general purpose finite element library which can leverage state of the art hardware platforms can be used for the implementation of the methodology. K E Y W O R D Saortic valve, contact model, finite element method, unified continuum fluid-structure interactionThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…Related work to solve multi-physics problems with FEniCS includes, for example, the monolithic fluid-structure interaction solver turtleFSI 88 written in FEniCS, as well as FENICS-HPC 89 . FEniCS extensions such as multiphenics 35 have also been developed to promote prototyping of multi-physics problems.…”

Section: Fenicsmentioning

confidence: 99%

preCICE v2: A sustainable and user-friendly coupling library

Chourdakis¹,

Davis²,

Rodenberg³

et al. 2022

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preCICE is a free/open-source coupling library. It enables creating partitioned multi-physics simulations by gluing together separate software packages. This paper summarizes the development efforts in preCICE of the past five years. During this time span, we have turned the software from a working prototype -- sophisticated numerical coupling methods and scalability on ten thousands of compute cores -- to a sustainable and user-friendly software project with a steadily-growing community. Today, we know through forum discussions, conferences, workshops, and publications of more than 100 research groups using preCICE. We cover the fundamentals of the software alongside a performance and accuracy analysis of different data mapping methods. Afterwards, we describe ready-to-use integration with widely-used external simulation software packages, tests, and continuous integration from unit to system level, and community building measures, drawing an overview of the current preCICE ecosystem.

show abstract

“…Related work to solve multi-physics problems with FEniCS includes, for example, the monolithic fluid-structure interaction solver turtleFSI 88 written in FEniCS, as well as FENICS-HPC 89 . FEniCS extensions such as multiphenics 35 have also been developed to promote prototyping of multi-physics problems.…”

Section: Official Adaptersmentioning

confidence: 99%

preCICE v2: A sustainable and user-friendly coupling library

Chourdakis¹,

Davis²,

Rodenberg³

et al. 2022

View full text Add to dashboard Cite

preCICE is a free/open-source coupling library. It enables creating partitioned multi-physics simulations by gluing together separate software packages. This paper summarizes the development efforts in preCICE of the past five years. During this time span, we have turned the software from a working prototype -- sophisticated numerical coupling methods and scalability on ten thousands of compute cores -- to a sustainable and user-friendly software project with a steadily-growing community. Today, we know through forum discussions, conferences, workshops, and publications of more than 100 research groups using preCICE. We cover the fundamentals of the software alongside a performance and accuracy analysis of different data mapping methods. Afterwards, we describe ready-to-use integration with widely-used external simulation software packages, tests, and continuous integration from unit to system level, and community building measures, drawing an overview of the current preCICE ecosystem.

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FEniCS-HPC: Coupled Multiphysics in Computational Fluid Dynamics

Cited by 4 publications

References 14 publications

An interface‐tracking unified continuum model for fluid‐structure interaction with topology change and full‐friction contact with application to aortic valves

An interface‐tracking unified continuum model for fluid‐structure interaction with topology change and full‐friction contact with application to aortic valves

preCICE v2: A sustainable and user-friendly coupling library

preCICE v2: A sustainable and user-friendly coupling library

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