Repository Universitas Lampung

Study Velocities and Dispersion Effects of Wave Propagation over Mangrove Models using 2-D Non-Linear and Compressional Wave Equations

Zakaria, Ahmad (2009) Study Velocities and Dispersion Effects of Wave Propagation over Mangrove Models using 2-D Non-Linear and Compressional Wave Equations. In: The Second International Conference On Green Technology and Engineering (ICGTE) 2009, 15-17 April 2009, Universitas Malahayati, Bandar Lampung.

[img]
Preview
PDF
Download (1319Kb) | Preview

    Abstract

    Most researches to modeling wave propagation in shallow water are using two class of waves, non linear shallow water wave equation as gravity wave equation, and simple wave equation as compressional wave equation. In this research, wave propagation over mangrove models was conducted. The aim o f this research were to study velocities and dispersion effects of wave propagation where propagate toward the mangrove models. The first order accuracy of the explicit finite-difference method was used to approximate the gravity wave equation and the second order accuracy of the explicit finite-difference method. It was used to approximate the compressional wave equation. Variety of water depths, 5 m up to 100 m are used to simulate the wave propagation. Results of non linear wave propagation also are compared with a result of compressional wave propagation. The mangrove models are employed for different water depths and different wave equations. Results of this research present that if the water depths increase from 5 m up to 100 m, the wave velocity will be increases significantly. For the same values of water depth, equal to 5 m, compressional waves propagate faster than gravity waves. For deeper water depths, the dispersion effects are less than for shallow water depths.

    Item Type: Conference or Workshop Item (Paper)
    Uncontrolled Keywords: velocities, dispersion effects, mangrove models, gravity and compressional waves
    Subjects: T Technology > TA Engineering (General). Civil engineering (General)
    Divisions: Fakultas Teknik > S1 Teknik Sipil
    Depositing User: Admin Fakultas Teknik
    Date Deposited: 25 Apr 2016 18:16
    Last Modified: 25 Apr 2016 18:16
    URI: http://repository.unila.ac.id/id/eprint/887

    Actions (login required)

    View Item