Diffusion Equation-Based Finite Element Modeling of a Monumental Worship Space
JOURNAL OF COMPUTATIONAL ACOUSTICS, vol.25, no.4, 2017 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 25 Issue: 4
- Publication Date: 2017
- Doi Number: 10.1142/s0218396x17500291
- Journal Name: JOURNAL OF COMPUTATIONAL ACOUSTICS
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Keywords: Diffusion equation model, finite element method, room acoustics, SOUND ENERGY PROPAGATION, ROOM-ACOUSTICS, REFLECTING BOUNDARIES, COUPLED ROOMS, SIMULATIONS, PREDICTION, REVERBERATION, TIME
- Open Archive Collection: AVESIS Open Access Collection
- Middle East Technical University Affiliated: Yes
Abstract
In this work, a diffusion equation model (DEM) is applied to a room acoustics case for in-depth sound field analysis. Background of the theory, the governing and boundary equations specifically applicable to this study are presented. A three-dimensional geometric model of a monumental worship space is composed. The DEM is solved over this model in a finite element framework to obtain sound energy densities. The sound field within the monument is numerically assessed; spatial sound energy distributions and flow vector analysis are conducted through the time-dependent DEM solutions.