Abstract
Simulations of acoustic field behavior based on a lattice gas model for waves were presented at the 121st Meeting of the Acoustical Society of America [J. Acoust. Soc. Am. 89, 1894(A) (1991)]. Since that time, the model has been extended to three dimensions. The model runs on a connection machine and is implemented in a fashion well suited to the computer’s SIMD architecture. The results are consistent with the anticipated field behavior and the computation is very rapid, on the order of three frames per second where a typical frame is a cube with 128 thirty-two bit values on a side. There are no narrow angle restrictions and sound speed can change in all directions. [This work has been supported by ONT.]
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