两相流排气压力脉动的实验研究分析

An Exprimental Investigation on the Pressure Fluctuation of Two-phase Flow in the Exhaust Pipe of Oscilating Disk Heat Engine

本文对特种发动机—摆盘式发动机排气管内气液两相流脉动状态进行了实验研究，概述了其实验过程，并对试验结果、典型图谱作了分析。其中，着重讨论了摆盘机排气系统的特点、冷却水对排气状态的影响，以及排气压力脉动与发动机振动和水下排气噪声的关系。

The pressure fluctuation of two-phase flow in the exhaust pipe of oscillating disk heat engine has been investi gated. The experimental process and analysis of measured spectrum are presented. Discussions are focused on the special feature of exhaust system of oscillating disk engine,on the influence of colling water,on the exhaust mode and on the relationship between pressure fluctuation of exhaust gas to the vibration of the engine and to the under water exhaust noise