by Charles S. Peskin
Courant Institute of Mathematical Sciences, New York University

Copyright, Charles S. Peskin, 2007, 2011, 2019, and 2021

I. The Immersed Boundary Method in a Simple Special Case

2D Matlab implementation

3D Matlab implemtation by Guanhua Sun
with vectorized delta-function routines by Tristan Goodwill

IBAMR by Boyce Griffith

II. Energy Functions for the Representation of Immersed Elastic Boundaries and Materials

An immersed boundary energy-based method for incompressible viscoelasticity. J Comput. Phys. 231: 4613–4642, 2012

A penalty immersed boundary method for a rigid body in fluid. Phys. Fluids 28: 033603, 2016
Homework related to the rigid pIB method
Statement an algorithm that implements the pIB method for this homework problem, by Ramiro Rebolledo

Notes for the application of the pIB method to a neutrally buoyant rigid body

Notes on the theory of Kirchhoff rods -- constrained and unconstrained

Dynamics of a closed rod with bend and twist in fluid. SIAM J Sci. Comput. 31(1): 273–302, 2008

Notes on the differential geometry of surface curvature

Notes on a vertex-oriented scheme for evaluating and differentiating the bending energy and area-preserving energy of a triangulated surface
Matlab programs for a nice triangulation of a sphere to any level of refinement

III. The Stochastic Immersed Boundary Method

Slides from guest lecture by Paul Atzberger

Simulation of osmotic swelling by the stochastic immersed boundary method SIAM J Sci Comput 37(4):B660–B688, 2015

Stochastic reductions for inertial fluid-structure interactions subject to thermal fluctuations SIAM J Appl Math 75(4):1884–1914, 2015

Fluctuating hydrodynamics methods for dynamic coarse-grained implicit-solvent simulations in LAMMPS
SIAM J Sci Comput 38(5):S62–S77, 2016

IV. Improved Volume Conservation

An immersed boundary method with divergence-free velocity interpolation and force spreading. J Comput. Phys. 347: 183-206, 2017

Gaussian-like immersed boundary kernels with three continuous derivatives and improved translation invariance arXiv:1505.07529v4

V. Mathematical Derivation of the Immersed Boundary Method

VI. Jump Conditions Across an Immersed Boundary
Derived from the Mathematical Formulation of the IB Method

VII. On the Numerical Stability of Target Point Forces in the Immersed Boundary Method