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Communication Dans Un Congrès Année : 2009

Sound Field Modeling in Architectural Acoustics using a Diffusion Equation Based Model

Résumé

In this paper, an implementation of a model for room-acoustic predictions in COMSOL Multiphysics is presented. The model (called diffusion model) is based on the solving of diffusion equations instead of classical wave equations and allows simulating the sound propagation in complex geometries at high frequency. Instead of using COMSOL Multiplysics to solve directly the problem, a specific tool has been developed. It is composed of a user-friendly interface (I-Simpa) which manipulates all the physical data of the problem (geometries, acoustic properties and elements) and generates an interoperability script to execute COMSOL Multiplysics via the generation of .m file scripts. Then, numerical results are processed by I-Simpa for the acoustic post-treatment and results display, like sound levels, reverberation times...
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Dates et versions

hal-00426400 , version 1 (26-10-2009)

Identifiants

  • HAL Id : hal-00426400 , version 1

Citer

Nicolas Fortin, Judicaël Picaut, Alexis Billon, Vincent Valeau, Anas Sakout. Sound Field Modeling in Architectural Acoustics using a Diffusion Equation Based Model. COMSOL - Conférence Europe, Oct 2009, Milan, Italy. 7p. ⟨hal-00426400⟩
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