Solution of Helmholtz equation by Trefftz method
- 1 July 1991
- journal article
- research article
- Published by Wiley in International Journal for Numerical Methods in Engineering
- Vol. 32 (1) , 63-78
- https://doi.org/10.1002/nme.1620320105
Abstract
The application of the Trefftz method for calculating wave forces on offshore structures is presented. Indirect and direct formulations using complete and non‐singular systems of Trefftz functions for the Helmholtz equation are posed in this paper. An effective technique using different interpolation functions for the velocity potential and wave force are suggested to improve the computational accuracy of the wave force. The numerical examples show that the present method is highly efficient and accurate.Keywords
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