e-space
Manchester Metropolitan University's Research Repository

Application of an overset mesh based numerical wave tank for modelling realistic free-surface hydrodynamic problems

Chen, Hao and Qian, Ling and Ma, Zhihua and Bai, Wei and Li, Ye and Causon, Derek and Mingham, Clive (2019) Application of an overset mesh based numerical wave tank for modelling realistic free-surface hydrodynamic problems. Ocean Engineering, 176. pp. 97-117. ISSN 0029-8018

[img]
Restricted to Repository staff only until 15 March 2021.
Available under License Creative Commons Attribution Non-commercial No Derivatives.

Download (8MB)

Abstract

This paper presents a numerical wave tank based on the overset mesh approach. Overset mesh is favourable to the moving mesh method owing to its ability to represent complex geometries whilst maintaining a good quality mesh, especially for large amplitude body motions. The numerical wave tank is developed by integrating a generic overset mesh functionality with an efficient wave generation library in OpenFOAM R . A series of benchmark test cases, including 2D regular waves interacting with a floating cylinder and boxshaped body with superstructures, 2D water entry of a rigid wedge and a ship hull section as well as the heave decay of a point absorber wave energy converter and the lifeboat motion in regular waves, are carried out to evaluate the capabilities of the developed numerical wave tank. The computed solutions agree well with the experimental data and other reference results reported in the literature, which demonstrates the capability of the numerical wave tank for modelling flow around structures with complex geometries under various wave conditions. The parallel efficiency of the solver, effects of the overlapping area on the solution accuracy and comparisons with the results from a dynamic mesh are also discussed.

Impact and Reach

Statistics

Downloads
Activity Overview
1Download
75Hits

Additional statistics for this dataset are available via IRStats2.

Altmetric

Actions (login required)

Edit Item Edit Item