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Conference proceeding
A new numerical modeling approach for sound propagation and generation: the Lattice Boltzmann Method
TRB 2010 Annual Meeting CD-ROM
Transportation Research Board 89th Annual Meeting (Washington, D.C., 01/10/2010–01/14/2010)
2010
Abstract
Noise pollution is a growing concern in the United States and other countries. While there are many sources of noise, traffic noise is a major portion of total noise in the environment. A major component of traffic noise is the sound generated by the interaction of tires with the roadway. At high speeds, (>30 miles/hr) tire/pavement noise overshadows the noise from other sources in the vehicle. This paper presents a novel sound propagation and generation modeling technique that can be used in roadway applications including environmental impact studies of roadways and other noise sources, development of noise maps, and barrier design …etc. The model also has capability of simulating generation of sound. The model is based on one of the most efficient computational fluid dynamic techniques, the Lattice Boltzmann (LB) method. Unlike existing wave propagation models, this model simulates air pressure fluctuations (i.e., sound waves) at the tire/pavement interface by solving the Navier-Stokes equations for air. The details of the LB method and its validation using analytical solutions and laboratory measurements have been given. Furthermore, several example applications of LB method for sound propagation as well as sound generation problems have been presented.
Details
- Title
- A new numerical modeling approach for sound propagation and generation
- Publication Details
- TRB 2010 Annual Meeting CD-ROM
- Resource Type
- Conference proceeding
- Conference
- Transportation Research Board 89th Annual Meeting (Washington, D.C., 01/10/2010–01/14/2010)
- Format
- pdf
- Number of pages
- 17
- Copyright
- Permission granted to the University of West Florida Libraries by the author to digitize and/or display this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires the permission of the copyright holder.
- Identifiers
- 99380090774406600
- Academic Unit
- Mechanical Engineering; Hal Marcus College of Science and Engineering
- Language
- English