A modified hybrid element model for combined diffraction-refraction-reflection-dissipation waves over large regions

Zhang Li-bang

doi:10.1007/BF02850543

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A modified hybrid element model for combined diffraction-refraction-reflection-dissipation waves over large regions

Updated：2023-05-16

- A modified hybrid element model for combined diffraction-refraction-reflection-dissipation waves over large regions
- Journal of Oceanology and Limnology Vol. 14, Issue 1, Pages: 68-78(1996)
- Affiliations：
  
  First Inst. of Oceanography
- Author bio：
- Funds：
- DOI：10.1007/BF02850543
  CLC：
- Published：1996
- Accepted：
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Li-bang, Z. A modified hybrid element model for combined diffraction-refraction-reflection-dissipation waves over large regions., Chin. J. Ocean. Limnol. 14, 68–78 (1996). https://doi.org/10.1007/BF02850543
DOI：

Li-bang, Z. A modified hybrid element model for combined diffraction-refraction-reflection-dissipation waves over large regions., Chin. J. Ocean. Limnol. 14, 68–78 (1996). https://doi.org/10.1007/BF02850543 DOI：

摘要

Abstract

A modified hybrid element method (MHEM) including diffraction

refraction

reflection and dissipation effects is developed to model wave transformation over large complex bathymetry under practical boundary conditions. Adoption of a simple functional in the MHEM dispenses with the additional unknowns in simultaneous equations of the conventional hybrid element method (HEM). In this paper incomplete Choleski & conjugate gradients (ICCG) algorithm is used to save computer CPU operation time and storage space; so calculation of wave information in large sea area can be carried out on PC computers. Also

the MHEM grid can be controlled by computer using local wavelength. The validity and efficiency of MHEM are confirmed by comparisons verifying that the MHEM can proviide numerical solutions with very good accuracy.

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references

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