2019•Computing in Science & EngineeringRequires access

Aerodynamic Drag Reduction of a High-Speed Train Nose With Bionic Round Pits

Tian Li, Deng Qin, Ming Li, Jiye Zhang

Abstract

The aerodynamic drag forces of a high-speed train with or without round pits were investigated. The aerodynamic drag reduction is mainly due to the pressure difference. The round pits installed on the coupling cover contribute nearly 2% for the aerodynamic drag reduction of high-speed trains.

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Key concepts: Aerodynamic drag, Drag, Aerodynamics, Drag divergence Mach number, Reduction (mathematics), Zero-lift drag coefficient, Parasitic drag, Lift-induced drag