Development & Design: Experimental and Theoretical Investigation of an Unusually Shaped Horn

In another example of cutting-edge experiments that deserve recognition, Joerg Panzer (R&D TEAM, Germany) and Patrick Macey (PACSYS, UK) detail an investigation of the sound pressure response and radiation impedance of a loudspeaker horn driven by an electro-dynamic transducer. The two authors (and creators of the respective software tools) combined measurements with simulation software using finite and boundary element methods and explored the associated issues with meshing for each method.

COMSOL announced the release of the latest version of its modeling and simulation software. COMSOL Multiphysics version 6.1 including expanded capabilities in Fluid and Mechanical Simulations. The Acoustics Module in version 6.1 includes several important new possibilities for electroacoustic simulations, including acoustic streaming, and lumped speaker boundary conditions for thermoviscous acoustics.

As anticipated, COMSOL unveiled its Multiphysics Version 5.6 Software Suite introducing faster and more memory lean solvers, efficient CAD assembly handling, clip planes, layout templates for building apps, and four new products: Fuel Cell & Electrolyzer Module, LiveLink for Simulink, Polymer Flow Module, and Liquid & Gas Properties Module. Important news in the Acoustics Module include a new time explicit Nonlinear Acoustics interface that uses the dG-FEM technology, a new feature to model Nonlinear Thermoviscous Acoustics, mechanical Port boundary conditions for elastic waves, and much more.

Our longtime columnist Richard Honeycutt shares his insights on Geoff Hill’s recently released book, Loudspeaker Modelling and Design: A Practical Introduction, which demonstrates modern software and hardware being applied to the processes behind loudspeaker design and modeling. Learn more about this indispensable work, now available from publisher Routledge / Focal Press. This article was originally published in audioxpress, February 2019.

As previewed back in October 2017, COMSOL now made available the latest release of its COMSOL Multiphysics and COMSOL Server software products. Version 5.3a provides simulation specialists with cutting-edge modeling tools and increased solver performance. Featuring new methods, material models and simulations, the new software includes a hybrid boundary element-finite element (BEM-FEM) method for acoustics and acoustic-structure interaction, among many valuable new tools.

Once again, the 2017 COMSOL Conference in Boston brought together the COMSOL community. Attendees got a chance to test the latest features for COMSOL Multiphysics 5.3a and COMSOL Server, scheduled to be released in Q4 2017. New features include acoustics and acoustic-structure interactions based on a hybrid boundary element-finite element (BEM-FEM) method, impulse response for ray acoustics, magnetostatics, shape memory alloy (SMA) materials for structural analysis, and much more!