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 outputs visualization files that can be read by the VisIt Visualization Tool.
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.
IBAMR requires a number of third-party libraries. Sample build instructions are provided for Linux and macOS installations.
Bugs and Other Issues
Please use the GitHub issue tracking system to report bugs, feature requests, or other issues with IBAMR.
IBAMR development is supported in part by NSF Software Infrastructure for Sustained Innovation awards OAC 1450327 (to the University of North Carolina at Chapel Hill), OAC 1450374 (to Northwestern University), and OAC 1607042 (to Rice University). IBAMR developent has also been supported in the past by NSF awards OAC 1047734 (to New York University) and OAC 1460334 (to UNC-Chapel Hill). The development of finite element-based structural models was supported in part by NSF Computational Mathematics awards DMS 1016554 (to New York Universiy) and DMS 1460368 (to UNC-Chapel Hill).