Chinese scientists make new breakthrough! "Punching holes" in the wings solves sonic boom problem?

[ITBEAR] News on August 12th. Recently, a research team from Northwestern Polytechnical University in China has made breakthrough progress in the field of aviation technology. They designed a new type of wing with a unique hole structure. It is expected to significantly reduce the sonic boom effect and improve the aerodynamic efficiency of the aircraft.

1. Sonic boom, as a shock wave phenomenon accompanying supersonic flight, not only produces huge noise pollution, but in severe cases may even cause the glass of buildings to break, which has become a key obstacle restricting the development of supersonic civil aircraft.

2. A research team led by Professor Gao Chao from the School of Aeronautics found through computer simulations and wind tunnel experiments that designing specific holes on the wings can effectively disrupt shock waves, reduce vibrations, and at the same time increase aerodynamic efficiency by more than 10%.
3. The research team’s solution is both simple and ingenious. They installed a device in the hole in the wing that only opens when the plane exceeds the speed of sound, effectively controlling the airflow around the wing. An air pump is also equipped inside the hole to adjust the intensity of the jet and reduce turbulence on the leading edge of the wing, thereby reducing wing vibration.
4. Currently, the team is planning to conduct further wind tunnel tests to perfect this technology. At the same time, multiple research teams around the world are also actively exploring ways to solve the problems of supersonic flight, including adding grooves or protrusions on the surface of the wing, using mechanical devices to suppress shock waves, and applying piezoelectric films to control airflow.
5. Professor Gao Chao’s team is confident in their solution. They pointed out in the research report: “Using jet control to suppress shock wave jitter, although the lift is slightly lost, the total drag can be reduced, so the lift-drag ratio increases instead.” A research result has been published in Acta Aerodynamics. -->

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