| Acoustic Radiosity, as it has become known in acoustics, is a form of bulk transfer of radiant energy. This bulk transfer of radiant energy is accomplished through a system of energy balance equations that relate the bulk energy transfer of each surface in the system to all of the rest of the surfaces in the system.; The purpose of this project was to derive a complete radiosity method for acoustics. Until now acoustic radiosity had been limited to modeling only point sources and diffuse surface reflections. In the current work four new source types have been included, line sources, differential area sources, strip sources, and area sources, and the method has been extended to include partially specular surface reflection.; The result of this work is a computer program that utilizes the new methods derived in the research, in order to model the sound field within architectural enclosures. Specifically, the new methods are used to model acoustic energy and the resulting sound pressure fields found in typical architectural acoustics designs.; The predictions made with the new methods are compared with an industry standard acoustical modeling program, and measurements of three architectural spaces. |
