The invention discloses a subway train body jet flow resistance reduction structure which comprises a train body and an upwarp type inclined plate, a main jet flow channel is defined by the upwarp type inclined plate and the train top face of the train body, and the main jet flow channel gradually inclines downwards in the direction close to the train tail of the train body. The end, away from the tail of the train body, of the main jet channel is provided with a jet inlet, and the end, close to the tail of the train body, of the main jet channel is sequentially provided with a first jet channel and a second jet channel from top to bottom. The vortex area above the tail of the train is greatly reduced, the reverse vortex below the tail of the train disappears, and the resistance of the train during advancing is greatly reduced; jet flow resistance reduction at the tail of the train can be completed without independently arranging a jet flow source in the train; through reasonable design of parameters of the jet flow structure at the tail of the train, the advancing resistance of the train during running is reduced to the maximum extent.
本发明公开了一种地铁列车车身射流减阻结构,包括列车车体、上翘式斜板,上翘式斜板与列车车体的车顶面围合形成主射流通道,且主射流通道沿靠近列车车体的车尾方向逐渐向下倾斜;主射流通道远离列车车体的车尾一端设置有射流入口,主射流通道靠近列车车体的车尾一端由上至下依次设置有第一射流通道及第二射流通道。本发明大幅减小列车尾部上方的涡区,并使得列车尾部下方的反向涡消失,大幅降低了列车行进时的阻力;无需在列车内单独布置射流源即可完成列车尾部的射流减阻;通过对列车尾部射流结构参数的合理设计,最大化降低了列车运行时的行进阻力。
Subway train body jet flow resistance reduction structure
一种地铁列车车身射流减阻结构
2023-02-03
Patent
Elektronische Ressource
Chinesisch
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |