| 近平静/波浪水面地效飞机气动特性风洞试验 |
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| 引用本文： | 高立华,黄龙太,傅澔,王昆仑,黄勇.近平静/波浪水面地效飞机气动特性风洞试验[J].实验流体力学,2021,35(5):68-74. |
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| 作者姓名： | 高立华 黄龙太 傅澔 王昆仑 黄勇 |
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| 作者单位： | 1.中国空气动力研究与发展中心，四川 绵阳 621000 |
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| 基金项目： | 工信部民机专项科研项目（MJ-2015-F-035） |
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| 摘 要： | 为研究波浪水面地效飞机气动特性的变化规律，在Φ3.2 m低速风洞开发了新的试验技术，以模拟地效飞机飞越1 m实际浪高水面时的气动特性。研制了具有一定上下升沉和前后平移行程的固定波浪地板，模拟螺旋桨带动力地效飞机在起飞、巡航、着水等状态飞经波峰、波谷、中立位置等相位时的气动性能。在现有水平活动地板基础上，采用在水平活动带表面设置2个周期波形的方式研制了活动波浪地板，通过活动波浪带的周期性循环运行，模拟地效飞机不断飞越波浪的情况，其模拟相似性更高，可以更加准确地模拟地效飞机与波浪之间的相对运动。利用固定水平地板、固定波浪地板和活动波浪地板装置模拟空中、近平静水面和近波浪水面飞行状态，获得了地效飞机无动力和螺旋桨带动力条件的气动特性风洞试验结果。研究结果表明:螺旋桨带动力和地板对地效飞机起飞和着水状态气动性能具有很强的耦合影响，并非简单的叠加关系；地效飞机在波浪的不同相位上方时，升阻性能和俯仰力矩均存在较强变化，影响飞行平稳性。
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| 关 键 词： | 地效飞机 平静水面 波浪水面 风洞试验 活动波浪地板 |
| 收稿时间： | 2020-06-19 |
Wind tunnel test for aerodynamics of wing-in-ground craft flying near smooth/wavy surface |
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| Affiliation: | 1.China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China2.China Special Vehicle Research Institute, Jingmen Hubei 448035, China |
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| Abstract: | In order to investigate the aerodynamics of the wing-in-ground craft flying near wavy surface the dedicated wavy ground floor and moving wavy belt are devised to simulate the real water wave with the height of one meter. The wavy ground floor is capable of varying its vertical and horizontal position. The moving wavy belt which contains two waves on the belt is suitable for the wind tunnel test of the wing-in-ground craft flying over all the phases of the wave. The wind tunnel test has been carried out which simulates the wing-in-ground craft flying in the sky, near smooth surface and wavy surface by means of flat ground floor, wavy ground floor and moving wavy belt, respectively. The wind tunnel test results show that propellers and the floor have a coupling effect on the taking-off and landing aerodynamics of the wing-in-ground craft, instead of simple superposition. What is more, the aerodynamic loads of the wing-in-ground craft fluctuate dramatically over the various phases of the wave. |
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