What Is IBAMR?
IBAMR is a distributed-memory parallel implementation of the immersed boundary (IB) method with support for Cartesian grid adaptive mesh refinement (AMR). Support for distributed-memory parallelism is via MPI, the Message Passing Interface.
Core IBAMR functionality relies upon several high-quality open-source libraries, including:
- SAMRAI, the Structured Adaptive Mesh Refinement Application Infrastructure
- PETSc, the Portable, Extensible Toolkit for Scientific Computation
- libMesh, a C++ finite element library
- hypre, a library of high performance preconditioners that features parallel multigrid methods for both structured and unstructured grid problems.
IBAMR also uses functionality provided by a number of additional third-party libraries, including: Boost, Eigen, HDF5, muParser, and Silo.
IBAMR outputs visualization files that can be read by ParaView and VisIt.
What Is the IB Method?
The immersed boundary (IB) method is a general-purpose numerical method for simulating fluid-structure interaction. The IB formulation of such problems uses an Eulerian description of the fluid and a Lagrangian description of the structure. Interaction equations that couple the Eulerian and Lagrangian variables take the form of integral equations with delta function kernels.
Bugs and Other Issues
Please use the GitHub issue tracking system to report bugs, feature requests, or other issues with IBAMR.
Acknowledgments
IBAMR development and related software infrastructure have been supported in part by awards from the National Institutes of Health (NIH) and the National Science Foundation (NSF), including:
- NIH R03HL182166: Sustainable Open-Source Software Tools for Simulating Cardiac Dynamics.
- NSF OAC 1931368, OAC 1931372, OAC 1931516, and OAC 1931524: Collaborative Research: Frameworks: Multiphase Fluid-Structure Interaction Software Infrastructure to Enable Applications in Medicine, Biology, and Engineering.
- NSF OAC 1652541: CAREER: Numerical Methods and Computational Infrastructure for Simulating Prosthetic Heart Valve Function and Dysfunction.
- NSF DMS 1664645 and DMS 1664679: FRG: Collaborative Research: Computational Methods for Complex Fluids: Adaptivity, Fluid-Structure Interaction, and Applications in Biology.
- NSF OAC 1450327, OAC 1450339, OAC 1450374, OAC 1607042, and OAC 1836797: SI2-SSI: Collaborative Research: Scalable Infrastructure for Enabling Multiscale and Multiphysics Applications in Fluid Dynamics, Solid Mechanics, and Fluid-Structure Interaction.
- NSF OAC 1047734 and OAC 1460334: SI2-SSE: Parallel and Adaptive Simulation Infrastructure for Biological Fluid-Structure Interaction.
- NSF DMS 1016554 and DMS 1460368: Hybrid Adaptive Numerical Methods and Computational Software for Biological Fluid-Structure Interaction.
We gratefully acknowledge this support.