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- W2013189835 abstract "The immersed boundary (IB) method has been widely applied to problems involving a moving elastic boundary that is immersed in fluid and interacting with it. Most of the previous applications of the IB method have involved a massless elastic boundary and used efficient Fourier transform methods for the numerical solutions. Extending the method to cover the case of a massive boundary has required spreading the boundary mass out onto the fluid grid and then solving the Navier-Stokes equations with a variable mass density. The variable mass density of this previous approach makes Fourier transform methods inapplicable, and requires a multigrid solver. Here we propose a new and simple way to give mass to the elastic boundary and show that the method can be applied to many problems for which the boundary mass is important. The method does not spread mass to the fluid grid, retains the use of Fourier transform methodology, and is easy to implement in the context of an existing IB method code for the massless case. Two verifications of the method are given. One is a numerical convergence study that shows that our numerical scheme is second-order accurate for a particular test problem. The other is direct comparison with experimental data of vortex-induced vibrations of a massive cylinder, which shows that the results obtained by the present method are quite comparable to the experimental data." @default.
- W2013189835 created "2016-06-24" @default.
- W2013189835 creator A5055835028 @default.
- W2013189835 creator A5085313743 @default.
- W2013189835 date "2007-05-01" @default.
- W2013189835 modified "2023-09-24" @default.
- W2013189835 title "Penalty immersed boundary method for an elastic boundary with mass" @default.
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- W2013189835 doi "https://doi.org/10.1063/1.2734674" @default.
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