Wave behavior in a numerical wave tank at intermediate depth of water using stokes wave theory

Deepak Kumar Singh, Sanjeev Ranjan and Naveen G Patil
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Deepak Kumar Singh: School of Engineering, Ajeenkya DY Patil University, Pune, Maharashtra 412105, India
Sanjeev Ranjan: Department of Mechanical Engineering, NIT Silchar, Silchar, Assam 788010, India
Naveen G Patil: Varroc Engineering Research and Development Center, Pune, Maharashtra 411033, India

International Journal of Modern Physics C (IJMPC), 2024, vol. 35, issue 05, 1-16

Abstract: The paper analyzes a second-order Stokes wave theory by CFD code and uses the volume of fluid (VOF) method in a 2D numerical wave tank (NWT) in the intermediate depth of water under different wave steepness conditions. The CFD simulation in an NWT generates a wave, validated with the already published experimental and numerical data to check the accuracy. It shows that current results are in good agreement with the published result and the difference in the results is within 2.1027%. Six tests under different wave heights for the time period T=3.24s have been conducted in an NWT to verify the analysis of the wave theory. Horizontal and vertical velocity, surface elevation, and the velocity vector of the particle motion are the important objectives in this analysis. The study shows that the free surface of the water is a high energy density zone. The time discretization has been achieved with the first-order implicit scheme and the second-order upwind scheme. This analysis shows that the ocean characteristic of second-order Stokes wave theory on the free surface is important to the engineering sciences and further investigation.

Keywords: CFD; second-order Stokes wave theory; very low wave steepness; horizontal and vertical velocities; surface elevation; velocity vector (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1142/S0129183124500645

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