Wind Tunnel is the visual language of the dark test section: an airfoil back-lit so pale smoke filaments — or laser-sheet-illuminated seed particles — trace streamlines as bright cool-white-cyan lines against a near-black ground. It is classic NACA/NASA flow visualization, where darkness maximises the contrast of the illuminated flow.
The system pairs technical monospace annotation with a precise grotesque, turning every surface into an instrument panel: angle-of-attack readouts, measurement ticks, and glowing streamlines over a deep tunnel-interior backdrop.
Wind Tunnel 取材于风洞试验段的黑暗内腔：一段机翼翼型被背光照亮，淡淡的烟流细丝—— 或激光片光照亮的示踪粒子——在近乎全黑的背景上拖出明亮的冷白偏青流线。这正是 1950 至 1990 年代经典的 NACA/NASA 流动可视化语言：四周越暗，被照亮的流场对比就越强。
本设计系统把技术等宽字体标注与精确的几何无衬线体相结合，让每一个界面都像仪表盘—— 迎角读数、测量刻度、发光流线，全部铺陈在深邃的风洞内腔底色之上。绝不使用米白或纯白， 也不掺入任何暖色；流线只取冷白偏青，以求最大对比。