Chinese researchers create 3D-printed turbofan engine structures inspired by shark skin, boosting aerodynamic efficiency with reduced drag.
The new technology could help China catch up, perhaps even surpass, the United States in the development of next-generation aviation propulsion systems.Chinese scientists have developed a new 3D-printed structure for turbofan engines, the design of which is based on shark skin or dermal denticles. The new structures are very robust and have been shown to dramatically reduce drag and increase aerodynamic efficiency.
The new generation of engines will require lower fuel consumption to achieve greater thrust. However, given the technical challenges, progress has been slow.The US Air Force announced last year that it plans to discontinue the Adaptive Engine Transition Program to develop a new next-generation fighter engine. Instead, the focus would be on upgrading existing engines. However, this new “shark skin” could help China leapfrog the U.S.
This casing connects the engine’s front intake fan and compressor to the aircraft fuselage. For this reason, it must endure the impact of high-pressure and high-temperature gases while transferring the engine’s thrust and torque to the aircraft.
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