Analysis of Aerodynamic Characteristics of Panto-Model Using Large Eddy Simulation

초록

Aerodynamic behavior for the pantograph pan-heads, one of the factors causing aerodynamic noise while a railroad vehicle is running, has been analyzed by using computational fluid dynamics. The unsteady flows around the pantograph pan-heads has been simulated by modelling the cross-section of the crossbar as a simple square. Here, the effect of pan-head strips on the pantograph has been neglected, and it has been assumed no other-structure interference with the pantograph pan-heads or the crossbar. The flow rate applied here is Re