Numerical study of wave transformation using the free surface reconstruction method
Visualitza/Obre
Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/332086
Tipus de documentText en actes de congrés
Data publicació2017
EditorCIMNE
Condicions d'accésAccés obert
Tots els drets reservats. Aquesta obra està protegida pels drets de propietat intel·lectual i
industrial corresponents. Sense perjudici de les exempcions legals existents, queda prohibida la seva
reproducció, distribució, comunicació pública o transformació sense l'autorització del titular dels drets
Abstract
The study of irregular wave field is complex due to its random hydrodynamic char-
acteristics. Many experimental studies have been performed in the past to study irregular waves.
However, numerical investigations are less time consuming and expensive as compared to the
experimental studies. For a good validation of the numerical model, it is essential to reproduce
the laboratory waves numerically. The reconstruction of the numerical irregular free surface el-
evation is necessary because the paddle signal for the wave-maker in experiments is unknown in most
of the cases. It is quite challenging to reconstruct the time history of free surface elevation of
irregular waves because of the random wave phases and wave periods. In the present work, a
numerical investigation is performed using the open-source computational fluid dynamics (CFD) model
REEF3D to test and validate the reconstruction of free surface profiles for irregular wave
propagation. Two-dimensional irregular waves are generated by super-positioning of the regu- lar
wave components. In the current reconstruction approach, the free surface is reconstructed by
representing the irregular free surface elevation as a summation of its Fourier components. First,
the free surface reconstruction method is tested for irregular waves in a two-dimensional wave tank
with constant water depth. The reconstructed free surface elevations shows a good match with the
theoretical wave profiles. Further, the method is used to reconstruct the wave transformation over
an impermeable fully submerged bar where the complex phenomena such as shoaling and wave breaking
occur. The reconstructed numerical free surface elevations along the wave tank are compared with
the experimental free surface elevations. The complex phenomena such as shoaling and breaking are
represented with reasonable accuracy in the numerical model.
CitacióAggarwal, A. [et al.]. Numerical study of wave transformation using the free surface reconstruction method. A: MARINE VII. "MARINE VII : proceedings of the VII International Conference on Computational Methods in Marine Engineering". CIMNE, 2017, p. 884-892. ISBN 978-84-946909-8-3.
ISBN978-84-946909-8-3
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
Marine-2017-72_NUMERICAL STUDY OF WAVE.pdf | 432,4Kb | Visualitza/Obre |