碩士 / 國立臺灣海洋大學 / 輪機工程學系 / 103 / In this thesis, the main propose is to generating a feasiblly numerical wave tank. We solved the problem which is combined with the Navier-Stokes equation on RANS equation, finite volume method, k-epsilon turblent model, and VOF(Volume of Fluid). Using the UDF(User Define Function) achieved the boundary type wave method, and the plank type wave method.
In actual, wave tank needs lots of labor costs, money costs, and time costs to keep the machine well. Furthermore, it would have trouble in gauging accurately, and conveniently. In traditional numerical tank, although they make wave basing on potential flow to avoid the error from physical viscosity. The result is similar to analytical solution, but it is different to actual phenomenon by viscosity. Moreover, using viscosity to simulate numerical tank would cause the unstable numerical, because of the difficult in converging at free surface, and the quantity of grid at free surface being not enough, etc.
In this thesis, in order to overcome above problems, we use to simulate wave phenomenon by 2D and 3D wave tank. From 3D tank, we obtained the relative error which is small than 10%; Further, we use to simulate the ship model test by this one under large wave. From numerical results, we can obtain accurate and stable numerical results correspond the actual phenomenon Hence, we successfully apply CFD to obtain stable and accurate wave tank.
| Identifer | oai:union.ndltd.org:TW/103NTOU5484024 |
| Date | January 2016 |
| Creators | Yuchen Liu, 劉昱辰 |
| Contributors | Chen,Yung-Wei, 陳永為 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 62 |
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