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| Water surface wave anisotropy phenomenon caused by harmonic oscillator’s different geometric structures |
| YANG Hong1，CHEN Dan1，MA Yuquan1，PENG Shiliu2，MAO Dongfeng3，ZENG Shuangxiong1，SONG Yunxuan1，WANG Caixia1 |
1.College of Sciences, Beijing Information Science and Technology University, Beijing 100192, China;
2. Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China;
3. SAWS Oil-Gas Safety Engineering Center, China University of Petroleum (Beijing), Beijing 102249, China |
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Abstract A high speed video camera and the software Tracker were used and combined with the particle image velocimetry technique and the numerical simulation method to study a water wave generator’s repulsion or traction to floating objects on water surface in its periodic oscillation process and motion trajectory of floating objects, and to reveal water surface wave anisotropy phenomenon caused by different resonator structures. The experiment results showed that the action of surface wave on floating objects mainly depends on oscillator’s geometric structure; a cylindrical oscillator only has a repulsive action on floating objects, but a tri-prism oscillator has a directional traction action on floating objects along the direction corresponding to the prism angle, and a repulsive action along other directions; different geometric structures of oscillators make their actions on floating objects be not only repulsive but also directional tractive, these actions cause water surface wave along different wave lines is anisotropic.
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Received: 12 July 2017
Published: 28 June 2018
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