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Split-step Padé solver for three-dimensional Cartesian acoustic parabolic equation in stair-step representation of ocean environment.
- Source :
- Journal of the Acoustical Society of America; Sep2019, Vol. 146 Issue 3, p2050-2057, 8p
- Publication Year :
- 2019
-
Abstract
- In this study, the three-dimensional Cartesian acoustic parabolic equation is fully solved in the stair-step representation of an ocean environment based on the split-step Padé algorithm. The sum representation of the Padé approximation of a full exponential operator in the split-step marching solution is used for parallel computing. A stabilized self-starter solution is derived in the same way. This solver is benchmarked against reference solutions for a rectangular duct propagation, an ideal wedge problem, and an axisymmetric ocean. Additionally, a solution for the Gaussian canyon problem is provided and compared with that obtained from the approximate parabolic equation solver, considering a leading-order cross-term. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00014966
- Volume :
- 146
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Journal of the Acoustical Society of America
- Publication Type :
- Academic Journal
- Accession number :
- 138991969
- Full Text :
- https://doi.org/10.1121/1.5125592