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- W853468086 abstract "An innovative hyperbolic preconditioning technique is developed for the numerical solution of the Helmholtz equation which governs acoustic propagation in ducts. Two pseudo-time parameters are used to produce an explicit iterative finite difference scheme. This scheme eliminates the large matrix storage requirements normally associated with numerical solutions to the Helmholtz equation. The solution procedure is very fast when compared to other transient and steady methods. Optimization and an error analysis of the preconditioning factors are present. For validation, the method is applied to sound propagation in a 2D semi-infinite hard wall duct." @default.
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- W853468086 date "1998-03-01" @default.
- W853468086 modified "2023-09-26" @default.
- W853468086 title "Preconditioning the Helmholtz Equation for Rigid Ducts" @default.
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