A numerical hybrid model for outdoor sound propagation in complex urban environments
Abstract
Noise mapping in large and dense urban areas is computationally challenging, if not impossible, with the use of conventional numerical techniques. Recently, promising results have shown the potential of energy-based models to compete with conventional numerical techniques. In this paper, a hybrid full-wave/diffusion propagation model is proposed to address some of the flaws of the traditional diffusion model. The full-wave model is used for predicting sound propagation (i) near the source, where interactions between waves are important, and (ii) outside the cluttered environment, where free-field-like conditions apply. The diffusion model is used in regions where diffusion conditions are met.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 01, 2018
- Source ID
- 10.1121/1.5027506
Entities
People
- Marcel C. Remillieux
- Ricardo A. Burdisso
- Stephanie M. Pasareanu
Organizations
- Los Alamos National Laboratory
- United States Army
- Virginia Tech