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Tech riderRev. 23 Sept 2026

turtleFSI

Ch 726.1of 91 Physics Simulation Software
  1. 1Runs onLinux, Mac, self-hosted
  2. 2CostsNot stated by the maker
  3. 3Lesson libraryNo
  4. 4Assessment toolsNo
3 lines stated Written from the maker's own pages: turtlefsi2.readthedocs.io
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The turtleFSI homepage

Overview

turtleFSI is ranked #72 of 91 in physics simulation software on Specifiction. It runs on Linux, macOS, Self-hosted.

Compared on physics simulation software

Lesson library
Noturtlefsi2.readthedocs.io
Assessment tools
Noturtlefsi2.readthedocs.io

Facts

Purpose
turtleFSI is a monolithic fluid-structure interaction solver written in FEniCS for research groups and individuals investigating fluid-structure interaction problems.github.com · 5 Oct 2026
Solver approach
The project describes turtleFSI as a fully monolithic solver using the classical arbitrary Lagrangian-Eulerian formulation.joss.theoj.org · 5 Oct 2026
Mesh lifting
It provides mesh lifting options including Laplace and biharmonic methods, with biharmonic described as more robust for large deformations but more computationally expensive and memory intensive.turtlefsi2.readthedocs.io · 5 Oct 2026
Simulation controls
Users can set simulation parameters from the command line and supply their own problem file.turtlefsi2.readthedocs.io · 5 Oct 2026
Checkpointing
Built-in functionality supports saving checkpoints at a chosen frequency and restarting from a previous checkpoint.turtlefsi2.readthedocs.io · 5 Oct 2026
Visualization
The solver can save XDMF result files for visualization in tools such as ParaView.turtlefsi2.readthedocs.io · 5 Oct 2026
Dependencies
The documentation lists FEniCS 2019.1.0, NumPy greater than 1.1X, and Python 3.7 or later as dependencies.turtlefsi2.readthedocs.io · 5 Oct 2026
Installation
The documentation recommends Anaconda or Miniconda installation on macOS or Linux and building from source for high-performance computing clusters.turtlefsi2.readthedocs.io · 5 Oct 2026
Parallel computing
The project says it can use FEniCS high-performance computing functionality and run with MPI parallel tasks.github.com · 5 Oct 2026
Known limitation
For large problems, often 3D problems with many degrees of freedom and several tens of processors, the default MUMPS solver may fail, possibly because it lacks memory for the linear system.turtlefsi2.readthedocs.io · 5 Oct 2026
License
The repository states that turtleFSI is licensed under GNU GPL version 3 or, at the user's option, any later version.github.com · 5 Oct 2026
Support
The repository directs users to its GitHub issue tracker to report bugs and other issues.github.com · 5 Oct 2026

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Where it ranks on Specifiction

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