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IB2d: a Python and MATLAB implementation of the immersed boundary method.

Nicholas A Battista1, W Christopher Strickland, Laura A Miller

  • 1Department of Mathematics, CB 3250, University of North Carolina, Chapel Hill, NC, 27599, United States of America. Department of Biology, CB 3280, University of North Carolina, Chapel Hill, NC, 27599, United States of America. www.github.com/nickabattista/IB2d.

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Summary
This summary is machine-generated.

We present IB2d, an open-source fluid-structure interaction (FSI) software package available in MATLAB and Python. This accessible tool simplifies complex biomechanics modeling for scientists, offering flexibility and performance without high costs.

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Area of Science:

  • Computational fluid dynamics
  • Biomechanics
  • Scientific software development

Background:

  • Developing fluid-structure interaction (FSI) software presents challenges in balancing usability, generality, performance, and cost.
  • Many existing FSI software packages have steep learning curves, limited accessibility due to proprietary licenses, or lack flexibility.
  • There is a need for open-source, user-friendly FSI tools for complex biomechanical simulations.

Purpose of the Study:

  • To introduce IB2d, an open-source immersed boundary software package implemented in MATLAB and Python.
  • To provide an accessible and versatile tool for scientists experienced in high-level programming to conduct biomechanics research.
  • To offer a flexible alternative to costly and restrictive commercial FSI software.

Main Methods:

  • The IB2d software package utilizes an immersed boundary approach for fluid-structure interaction simulations.
  • Implementations are provided in both MATLAB and Python, ensuring broad accessibility.
  • The package includes modules for material property definition, chemical gradient simulation, muscle mechanics, and boundary motion control.

Main Results:

  • IB2d enables the simulation of a wide array of biomechanics models.
  • The software is designed for ease of use by scientists familiar with high-level programming languages.
  • It offers multiple options for modeling fiber structures, chemical transport, and muscle dynamics.

Conclusions:

  • IB2d provides an open-source, flexible, and accessible solution for fluid-structure interaction and biomechanics modeling.
  • The package lowers the barrier to entry for complex simulations, supporting scientific research without expensive licenses.
  • Its dual implementation in MATLAB and Python enhances its utility across different research environments.