高速地铁隧道压力波计算和软件化方法及规律研究

With the speed-up of subway train, the discomfort problem of passengers caused by pressure waves becomes more attached important to by the design and operating department of subway. However domestic and foreign research on such problem has not a systemic result, and the prediction method of pressure waves is still incomplete.. Considering the irreversible factors such as transient friction, heat and mass transfer，the prediction method of the pressure waves based on the one-dimensional unsteady compressible non-homentropic flow model and the method of characteristics is introduced, and the program is developed which can be used to calculate the pressure waves in the complex subway tunnel and mode of operation organization. Based on this method, the law of generation and propagation of pressure waves in subway is studied. At the same time, the influence characteristics are obtained which are related to speed, train-tunnel dimension ratio, tunnels, shafts, cross passage and the method of operation organization. Finally, through studying the software method, the interface software based on the reasonable prediction method is developed and it is suitable for engineering and technical personnel.. All these work provides the prediction method for pressure waves in subway, and has theoretical and practical value for choosing the cross-section area of subway tunnel and improving the comfort of passengers.

随着地铁列车运行速度的提高，隧道内压力波引起乘客耳鸣等舒适性问题引起了地铁设计和运营部门的高度重视。而国内外对此类问题研究还不够系统，相应的空气动力学分析方法和工具还不完备。. 本项目考虑瞬态摩擦、传热、传质等不可逆因素，研究适用高速地铁空气流动特点的一维可压缩非定常不等熵流动模型和高精度特征线法的压力波计算方法，建立复杂地铁隧道结构和复杂行车组织方式下的压力波分析程序；在此基础上研究地铁压力波产生和传播的规律，获取行车速度、阻塞比、竖井、横通道、隧道结构及行车运行组织方式等对压力波影响特征。最后通过软件化方法研究，将得出的合理压力波计算方法发展成适合工程技术人员使用的有交互界面的计算软件。. 本项目的研究成果将为地铁隧道压力波估算提供较好的计算方法，也对高速地铁隧道净空面积参数选择设计及改善乘客舒适性问题有理论和实用价值。

地铁列车运行速度提高会在隧道内产生压力波，传入车内会引起乘客耳鸣等舒适性问题。国内已进行了相关方面的研究，但还不够系统，相应的空气动力学分析方法和工具还不完备和便捷。. 本研究考虑瞬态摩擦、传热、传质等不可逆因素，研究适用高速地铁空气流动特点的一维可压缩非定常不等熵流动模型和高精度特征线法的压力波计算方法，建立复杂地铁隧道结构和复杂行车组织方式下的压力波分析程序；在此基础上研究地铁压力波产生和传播的规律。且还依据面向对象软件设计原则，初步完成了有交互界面的高速地铁压力波计算软件。. 本研究还适应当前三维软件在地铁压力波计算领域的发展趋势以及存在的问题，建立了一维和三维方法联合计算方法，兼顾了准确性和效率性。. 本研究提出的地铁隧道压力波估算方法为相关科研人员及技术人员进行了压力波研究和计算了提供较好的方法参考，也对高速地铁隧道净空面积参数选择设计及改善乘客舒适性问题有理论和实用价值。