FEniCS–preCICE: Coupling FEniCS to other simulation software

Rodenberg, Benjamin; Desai, Ishaan; Hertrich, Richard; Jaust, Alexander; Uekérmann, Benjamin

doi:10.1016/j.softx.2021.100807

“…The adapter provides two possibilities to transform this raw coupling_data to a boundary condition that can be used in FEM: (1) An Expression can be generated and used as a functional representation of provided coupling_data via interpolation or (2) a PointSource can be generated to apply point-wise loads. Both approaches have their respective use-cases for FEniCS users 86 , but a user can also use the raw coupling_data to create boundary conditions depending on the individual requirements.…”

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.

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“…In the case of FEniCS, the solver was developed 40 based on a heat equation example from Langtangen et al 85 . A detailed description of the solver can be found in the FEniCS adapter reference paper 86 . In case of Nutils, we provide a similar example.…”

Section: Flow Over a Heated Plate Cht Tutorialmentioning

confidence: 99%

“…A wide variety of examples is provided in the FEniCS project to illustrate its usage 85 . The FEniCS-preCICE adapter 86 facilitates coupling of FEniCS-based solvers using preCICE.…”

Section: Official Adaptersmentioning

confidence: 99%

preCICE v2: A sustainable and user-friendly coupling library

Chourdakis¹,

Davis²,

Rodenberg³

et al. 2022

Self Cite

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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“…However, the coupling of simulation codes that are working on different time-scales or using different time stepping schemes remains a big challenge [2].To be able to combine the black-box coupling of preCICE with heterogeneous time stepping methods we designed a waveform iteration-based coupling scheme [3]. Additionally, we developed a software to facilitate the coupling of the off-the-shelf finite element solver FEniCS with preCICE -a so-called adapter [4].In this talk, we present how these two components -the waveform iteration-based coupling scheme and the FEniCS-adapter -are combined to be used in a simulation setup that is close to a real application. This allows us to solve coupled problems with heterogeneous time stepping methods or time-scales in FEniCS.…”

mentioning

confidence: 99%

“…To be able to combine the black-box coupling of preCICE with heterogeneous time stepping methods we designed a waveform iteration-based coupling scheme [3]. Additionally, we developed a software to facilitate the coupling of the off-the-shelf finite element solver FEniCS with preCICE -a so-called adapter [4].…”

mentioning

confidence: 99%

Design and evaluation of a waveform iteration–based approach for coupling heterogeneous time stepping methods via preCICE

Rodenberg¹

2022

15th World Congress on Computational Mechanics (WCCM-XV) and 8th Asian Pacific Congress on Computational Mechanics (APCOM-VIII)

0

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For multiphysics simulations the robust and accurate coupling of different simulation codes is often required. Code coupling libraries, such as preCICE [1], allow the user to easily couple codes following a data-driven black-box approach, which ensures high flexibility and ease-of-use. However, the coupling of simulation codes that are working on different time-scales or using different time stepping schemes remains a big challenge [2].To be able to combine the black-box coupling of preCICE with heterogeneous time stepping methods we designed a waveform iteration-based coupling scheme [3]. Additionally, we developed a software to facilitate the coupling of the off-the-shelf finite element solver FEniCS with preCICE -a so-called adapter [4].In this talk, we present how these two components -the waveform iteration-based coupling scheme and the FEniCS-adapter -are combined to be used in a simulation setup that is close to a real application. This allows us to solve coupled problems with heterogeneous time stepping methods or time-scales in FEniCS. We introduce a test case to assess the accuracy of the whole software stack. With the overall architecture and a scheme for thorough evaluation in place, this marks a starting point for applying the proposed methodology to more complex problems.

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FEniCS–preCICE: Coupling FEniCS to other simulation software

Cited by 10 publications

References 19 publications

preCICE v2: A sustainable and user-friendly coupling library

preCICE v2: A sustainable and user-friendly coupling library

preCICE v2: A sustainable and user-friendly coupling library

Design and evaluation of a waveform iteration–based approach for coupling heterogeneous time stepping methods via preCICE

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