NASA and industry partners are working towards a future that sees aviation meet cleaner sustainability standards.
To that end, new designs for the airplanes of tomorrow, such as the Transonic Truss-Braced Wing (TTBW) concept shown in this image from 2021, are being tested by researchers and engineers. The TTBW is essentially a classic tube-and-wing passenger aircraft whose wings are extremely long and thin – so much that they need a little help to hold them up. By narrowing the thickness of the wings and extending their length, drag is reduced, and 5-10 percent less fuel is burned than comparable narrowbody aircraft. This image was created using data from a computational fluid dynamics simulation – essentially a virtual wind tunnel test. The red and orange areas represent higher drag, and the green and blue areas represent lower drag. Note the beautifully sleek green-blue color of the wings – the colors of Earth.
Image Credit: NASA/Craig Hunter
Text Credit: John Gould, Aeronautics Research Mission Directorate
为此，研究人员和工程师正在测试未来飞机的新设计，如上图所示的2021年的跨音速桁架支撑机翼 (TTBW) 概念飞机。TTBW本质上是一种经典的管式机翼客机，其机翼又长又薄——以至于它们需要一点帮助才能支撑起来。通过缩小机翼的厚度并延长它们的长度，可以减少阻力，并且比同类窄体飞机节省5%至10%的燃料。该图像是使用来自计算流体动力学模拟的数据创建的——本质上是一个虚拟风洞测试。红色和橙色区域代表较高的阻力，绿色和蓝色区域代表较低的阻力。请注意翅膀美丽光滑的蓝绿色——这是地球的颜色。
文字来源：John Gould, Aeronautics Research Mission Directorate