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首页> 外文期刊>Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics >Aerodynamics loads variations of wings with novel heating of top surface: Bioinspiration and experimental study
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Aerodynamics loads variations of wings with novel heating of top surface: Bioinspiration and experimental study

机译：空气动力学载有多种顶面加热的翅膀的变化：生物定位和实验研究

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摘要

Applications of unmanned aerial vehicles are becoming more attainable through the increase in system efficiency. As seen in nature, birds like the albatross utilize the temperature effects resulting from their wings' color to increase their flight efficiency. In this paper, the effects that differences in surface temperatures of birds' black/white wings, colored flat plates, and airfoils with heating films is investigated. Such effects are applicable to the efficiency of fixed-wing drones. Experimentally, it is observed that the surface temperature of black birds' wings is over 50% higher than white wings under solar radiation. The application of a novel heated top surface on five airfoils results in the drag coefficient decreasing up to 60% and the lift coefficient increasing up to 70% for some airfoils in specified angles of attack compared to a non-heated top surface. This method of utilizing thermal effects can be considered as a new applicable way to increase the flight efficiency in fixed-wing unmanned aerial vehicles.
机译：通过系统效率的提高，无人驾驶飞行器的应用变得越来越可实现。如本质上所见，像信天翁一样的鸟类利用其翅膀颜色产生的温度效应来提高其飞行效率。在本文中，研究了鸟类黑/白翅膀，彩色平板和加热膜的翼型的表面温度差异的影响。这种影响适用于固定翼无人机的效率。在实验上，观察到，在太阳辐射下，黑鸟翅膀的表面温度比白色翅膀高于50％。在五个翼型上的新型加热顶面的应用导致拖曳系数降低高达60％，并且与非加热的顶部表面相比，一些翼型的一些翼型的升力系数增加高达70％。这种利用热效应的方法可以被认为是增加固定翼无人驾驶飞行器中飞行效率的新的适用方式。

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