Computational Acoustics 2024

Morning lectures
- Basics of finite difference time domain (FDTD) and finite volume time domain (FVTD) methods (with applications to room acoustics), including: numerical dispersion; computational cost and basic bounds; numerical stability conditions; frequency-dependent locally reactive boundary conditions
- Special advanced topics, including: higher order accuracy and modified equation methods; source directivity; distributed and time varying sources; immersed boundary methods.
- Application of FDTD methods for outdoor sound propagation problems, solving propagating sound waves at long range in an inhomogeneous and moving medium above a non-flat and absorbing ground.
o dispersion and disspation properties of finite difference schemes, phase and group velocity, optimized finite-difference schemes
o non-reflective boundary conditions: PML, characteristics approach
o high-order methods for impedance boundary conditions and for sound propagation in porous materials

Afternoon tutorial
- 1D propagation of a pulse to highlight dispersion, dissipation and group velocity effect
-2D propagation of a pulse for evaluating non-reflective boundary conditions

Morning lectures
- Fundamental concepts of FEM: Strong to weak form; element concept; assembly process; isoparametric elements.
- Introduction of damping, equivalent fluid vs normal impedance, fluid-structure interaction problems.
- The finite element method in 2D and 3D; Sources and boundary conditions; Solution approaches.
- Interpolation error and numerical dispersion; High-order methods and convergence; State-of-the-art and available tools.

Afternoon tutorial
- FEniCSx tutorials.

Morning Lectures
- Info will follow.

Afternoon tutorial
- Info will follow.

Morning Lectures
- Info will follow.

Afternoon tutorial
- Info will follow.

Morning lectures
- Sharing research software, what are the benefits and what are the barriers?
- An approach to work with open research software: the TU/e Building Acousics team
- Examples of communities in open research software
- Instructions and guidelines for acceleration of sharing research software (such as licencing, citations, visibility and software quality)
- Examples of sharing research software are various levels: from sharing a simple code connected to a research paper to open research software written to promote a sustainable development

Afternoon tutorial
- Evaluations the quality of software by using existing open resaerch software in acoustics