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| Hydrodynamic Characteristics Analysis of UUV Parking on the Seabed |
| ZHU Xin-Yao-1, SONG Bao-Wei-1, DAN Zhi-Xiong-2, WANG Peng-1 |
| (1. College of Marine Engineering, Northwestern Polytechnical University, Xi’an 710072, China;2. The 705 Research Institute, China Shipbuilding Industry Corporation, Xi’an 710075, China) |
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Abstract Based on the introduction of the conception and working process of unmanned under water vehicle(UUV) parking on the seabed, in order to study the hydrodynamic forces of UUV changing with attack angle and the impact of assistantthrusters and supporting structures on hydrodynamic forces, this paper meshed structured grid using Ansys ICEM and simulated the flow field using CFX of three different kinds of UUV, the UUV without supporting structure and assistantthruster, the UUV with only supporting structures and the UUV with assistantthrusters and supporting structures. The paper also simulated the situations of attack angle changing from -90 to 90 degrees and obtained the results of drags, lifts and pitching moments at each situation. Then the results were summarized and the curves of drag coefficient, lift coefficient and pitching moment coefficient were drawn. Finally, the hydrodynamic characteristic of the UUV and the impact of assistantthrusters and supporting structures on hydrodynamic forces were analyzed.
Key words：
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Received: 23 April 2011
Published: 28 April 2012
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