Approximate Acoustic Boundary Conditions in the Time-Domain using Volume Penalization
Fluid Dynamics
2023-03-22 v1 Computational Physics
Abstract
Immersed boundary methods allow describing complex objects on simple Cartesian grids in time-domain simulations. The penalization technique employed here is a physically motivated Brinkman method that models objects as porous material by including a friction term and an effective volume. We investigate how the approach can mimic different acoustic boundary conditions. It is validated concerning different acoustic setups, including rigid walls and various absorber configurations.
Keywords
Cite
@article{arxiv.2203.04790,
title = {Approximate Acoustic Boundary Conditions in the Time-Domain using Volume Penalization},
author = {Mathias Lemke and Julius Reiss},
journal= {arXiv preprint arXiv:2203.04790},
year = {2023}
}