2405 Benchmark technologies and cases for computational acoustics

  • Weikang Jiang, Shanghai Jiao Tong University
  • Haijun Wu, Shanghai Jiao Tong University

Numerical methods are emerging as a powerful tool for solving various acoustic problems, such as FEM, BEM, FDM and so on. Every year plenty of sophisticated numerical algorithms and codes are developed in the scientific community. It is necessary to develop and prompt benchmark technology, cases and reference results to validate the newly developed numerical techniques.
The session includes various topics of benchmarks in the entire field of computational acoustics, such as follows:

1) Benchmark of acoustic computation in frequency domain and time domain methods
Numerical algorithms as solutions of wave equations for scattering and radiation problems, including frequency domain and time domain problems. Benchmarks for the frequency domain problems are group into low frequency problems, middle and high frequency problems. Higher frequency problems for which consideration of energy terms might be more interesting than deterministic evaluation acoustic quantities such as pressure or particle velocity.

2) Benchmark of computation of interior and exterior acoustic problems
The topic is designed by the space the acoustic problems are solving for. Interior acoustic problems are related to enclosed space acoustic problems, such as room acoustics, cabin noise, etc. Exterior acoustic problems are most concerned about methods for sound propagation in an unbound space, such as pass by noises of vehicles, environmental acoustics, etc.

3) Benchmark of coupled acoustic problems
Simulation for acoustic problems coupled with other physical models, such as structure dynamics, fluid dynamics and thermodynamics, are of practical importance. This topic includes fluid-structure interaction problems, such as transmission loss through (layered) plates and shells, structure, porous media, flow- and aeroacoustics (with coupling to structural vibrations), underwater acoustics, etc. Other coupling methods related to acoustic problems are also welcomed.

4) Techniques related to the development of benchmark solutions, such as theory model and experimental setup, etc.

© WCCM-APCOM 2022. All Rights Reserved.