今年5月7日是世界著名空气动力学大师冯·卡门逝世40周年的日子。他是我国著名空气动力学家钱学森的导师,曾任清华大学航空顾问,多次在清华和中央大学讲过学;曾秘密帮助中国建立现代空军。鉴于冯·卡门在空气动力学和超音速飞行领域内为人类作出的卓绝贡献,他被誉为“超音速时代之父”。 May 7 this year is the 40th anniversary of the death of von Karman, the world’s leading aerodynamic master. He is a tutor of Qian Xuesen, a famous aerodynamicist in China. He used to be an aviation consultant of Tsinghua University and spoke many times at Tsinghua University and Central University. He secretly assisted China in establishing the modern air force. Given von Karman’s outstanding contributions to mankind in the fields of aerodynamics and supersonic flight, he is known as the “father of the supersonic era.”