title: Visualizations of sound energy across coupled rooms using a diffusion equation model.
abstract: Visualizations, based on a diffusion equation model, are presented for both steady-state and transient sound energy. For steady-state sound-pressure level distributions, animations created by scanning from the primary room to the secondary room reveal discontinuous transitions of sound energy caused by a location change from the wall area to the aperture area. Animations of time-dependent energy flow directions visualize the energy flows across coupled spaces. This study also reveals a "reversal" characteristic of energy flow directions which seems to be dependent on the size and location of the aperture.
authors.affiliation: Graduate Program in Architectural Acoustics, School of Architecture, Rensselaer Polytechnic Institute, Troy, New York 12180, USA. jingy@rpi.edu
authors.forename: Yun
authors.initials: Y
authors.lastname: Jing
authors.forename: Ning
authors.initials: N
authors.lastname: Xiang
mesh_terms: D000162:Acoustics; D003198:Computer Simulation; D004058:Diffusion; D005160:Facility Design and Construction; D008962:Models, Theoretical; D009038:Motion; D011312:Pressure; D013016:Sound; D013997:Time Factors; D014732:Vibration