探讨通过水流模型试验进行高速列车空气动力学研究的可行性

Investigation of Aerodynamic Problems for High Speed Trains (HST) Through Hydraulic Model Test

高速列车是铁路现代化的重要标志之一。为在我国发展高速铁路,首先必须进行相应的科学研究,其中一个关键问题是测定并改善高速列车的空气动力特性。本文首先剖析了在风洞中进行高速列车空气动力特性试验存在的困难和问题,进而论证了在拖池中以水作为工作流体进进试验的可行性及优越性,同时也指出了水流模型试验中需要注意的几个关键技术问题。

The application of HST is an important index for railway modernization, For the development of HST in our country, it is necessary to start with scientific research. One of the key problems to be dealt with is to measure the aerodynamic behaviour of HST so as to improve it. This paper analyses the difficulties and disadvantages in carrying out wind tunnel tests to identify the aerodynamic characteristics of HST and demonstrates the feasibility and advantages of carrying out towing channel terts using water as the working fluid. Some techanical problems requiring attention in conducting towing channel tests are also pointed out.