DIFRAKSI GELOMBANG PADA SILINDER 8ESAR DENGAN MILD SLOPE EQUATION

Authors

  • Didik Purwantoro

DOI:

https://doi.org/10.21831/inersia.v2i2.8315

Abstract

ABSTRACT
This research is aimed to know the process of wave diffraction
around the large cylinder of offshore structure using finite element
method. This model chosen because of some reasons, i.e the
complication of offshore structure's shape which are caused difficulties
to conduct physical model solving. The other excess of this numerical
model is cheaper and easier than physical model conducted in the
laboratorium.
The equation of wave diffraction can be formulated as Helmholtz
equation. A second approach can be developed by Mild Slope Equation,
which is assumed that the depth is constant. The Helmholtz equation
was done using finite element method with linear triangle interpolation.
With finite element method, the complicated domain area can be solved
more easily and effectively.
The result shows that the use of finite element method is still
adequate to solve Helmholtz equation' for period 8, 9 and 10 second.
For period of 8 second numerical error produce the wave height
difference of 0,36 m. The numerical model is then easily edited to
analyze another offshore structures.
Keywords: diffraction, cyllinder, finite element

Author Biography

Didik Purwantoro

Stat Pengajar Fakultas Teknik UNY

Downloads

How to Cite

Purwantoro, D. (2016). DIFRAKSI GELOMBANG PADA SILINDER 8ESAR DENGAN MILD SLOPE EQUATION. Inersia : Jurnal Teknik Sipil Dan Arsitektur, 2(2). https://doi.org/10.21831/inersia.v2i2.8315

Issue

Vol. 2 No. 2 (2006): September

Section

Articles

License

Authors who publish with INERSIA journal agree to the following terms:

  1. Authors retain copyright and grant the INERSIA journal right of first publication with the work simultaneously licensed under Creative Commons Attribution License (CC BY 4.0) that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
  2. Authors can enter into separate, additional contractual arrangements for the non-exclusive distribution of the published version of the work (e.g., post it to an institutional repository or edit it in a book), with an acknowledgment of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) before and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.
Lisensi Creative Commons
INERSIA by https://journal.uny.ac.id/index.php/inersia was distributed under a Creative Commons Attribution 4.0 International License