Hydrodynamic performances of a wall type breakwater - a physical and numerical approach

Authors

  • Kumaran Viswanathan National Institute of Technology Karnataka
  • Manu Associate Professor, Department of Water Resources and Ocean Engineering, National Institute of Technology Karnataka, Surathkal, India.
  • Subba Rao National Institute of Technology Karnataka

DOI:

https://doi.org/10.3329/jname.v18i2.52134

Keywords:

Ansys-Fluent; Caisson type breakwater; VOF method; Wave Interaction; RANS equation

Abstract

In this paper, hydrodynamic characteristics of caisson type breakwater are investigated through physical model approach and a numerical model based on the Volume of Fluid (VOF) is validated. The investigations are carried out for varying wave characteristics and depth of water 0.50 m. In an experimental study, to understand the model and scale effects for the desired wave conditions is a critical task in all-time conditions. So, it is also necessary to develop an appropriate numerical model to understand the hydrodynamics of the selected test model. Using the Volume of Fluid (VOF) method and incompressible open channel fluid flow a 2D numerical wave flume is developed using ANSYS- Fluent platform. The wave boundary conditions are adopted by solving the Reynolds-Averaged Navier Stokes equations (RANS equation) and especially with k—ε model to examine the effects of turbulence on the numerical results. The wave forces, wave runup, and wave reflection characteristics on the test model are measured for different wave characteristics, and results obtained from the numerical investigations are comparable with the experimental results to evident the relevance of the developed numerical model.

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Author Biographies

Manu, Associate Professor, Department of Water Resources and Ocean Engineering, National Institute of Technology Karnataka, Surathkal, India.

Associate Professor,

Department of Water Resources and Ocean Engineering,

National Institute of Technology Karnataka, Surathkal, India.

 

Subba Rao, National Institute of Technology Karnataka

Professor 

Department of Water Resources and Ocean Engineering

National Institute of Technology Karnataka, surathkal.

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Published

31.12.2021

How to Cite

Viswanathan, K., Manu, & Rao, S. (2021). Hydrodynamic performances of a wall type breakwater - a physical and numerical approach. Journal of Naval Architecture and Marine Engineering, 18(2), 141–154. https://doi.org/10.3329/jname.v18i2.52134

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Articles