| 跨介质航行器波浪环境入水流场演变和运动特性研究 |
| |
| 作者姓名： | 史崇镔 张桂勇 孙铁志 宗智 |
| |
| 作者单位： | 大连理工大学船舶工程学院，大连 116024,大连理工大学船舶工程学院，大连 116024；大连理工大学工业装备与结构分析国家重点实验室，大连 116024；高新船舶与深海开发装备协同创新中心，上海 200240,大连理工大学船舶工程学院，大连 116024；大连理工大学工业装备与结构分析国家重点实验室，大连 116024,大连理工大学船舶工程学院，大连 116024；大连理工大学工业装备与结构分析国家重点实验室，大连 116024；高新船舶与深海开发装备协同创新中心，上海 200240 |
| |
| 基金项目： | 国家自然科学基金（51709042）;辽宁省自然科学基金（20180550619）;中国博士后科学基金（2018M631791，2019T120211）;辽宁省“兴辽英才计划”项目资助（XLYC1908027） |
| |
| 摘 要： | 跨介质航行器是一种既可以在空中飞行又可以在水下潜航的新概念航行器,基于仿生学原理,提出一种通过改变外形实现水空介质跨越的航行器模型,通过入水试验装置和计算流体动力学方法,对航行器带攻角从空气到水的介质跨越过程进行了试验和数值仿真研究,得到了跨介质入水过程航行器的运动姿态和入水空泡形态,并通过数值仿真得到了航行器的升力、阻力、速度和加速度演化规律。同时基于数值模拟方法对有波浪情况和静水情况下航行器入水过程空泡演变以及运动特性进行对比。结果表明:提出的航行器构型在水中具有较好的姿态调整能力,波浪的有无和波高的不同都会对航行体入水运动特性造成影响。
|
| 关 键 词： | 跨介质航行器 入水 流场演变 运动特性 |
Study on the Flow Field Evolution and Motion Characteristics of Trans-Media Vehicle under Wave Conditions |
| |
| Authors: | SHI Chongbin ZHANG Guiyong SUN Tiezhi and ZONG Zhi |
| |
| Institution: | School of Naval Architecture, Dalian University of Technology, Dalian 116024, China,School of Naval Architecture, Dalian University of Technology, Dalian 116024, China; State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian 116024, China; Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai 200240, China,School of Naval Architecture, Dalian University of Technology, Dalian 116024, China; State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian 116024, China and School of Naval Architecture, Dalian University of Technology, Dalian 116024, China; State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian 116024, China; Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai 200240, China |
| |
| Abstract: | Transmedia vehicle is a new concept aircraft that can fly both in the air and underwater. Based on the principle of bionics, this paper proposes a vehicle model that can enter the water by changing its shape. Experiment and computational fluid dynamics methods are used to conduct studies on the process of the vehicle with an angle of attack from air to water. The evolution features of the lift, drag, velocity and acceleration of the vehicle is discussed. At the same time, based on the numerical simulation method, the cavitation evolution and motion characteristics of the vehicle entering the water under wave conditions and still water conditions are compared. The results show that the vehicle configuration proposed in this paper has good attitude adjustment ability in water. |
| |
| Keywords: | Trans-media vehicle Water-entry Flow field evolution Motion characteristics |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《》浏览原始摘要信息 |
| 点击此处可从《》下载免费的PDF全文 |
|
