环形分布器内气体变质量流动及压强分布规律

The Mass Variable Flow and Pressure Distribution in a Gas Distributor

利用激光多普勒测试技术等对环形分布器内气体变质量流动规律和压强分布进行了研究。环形流道内周向压强分布呈非单调变化 ,在距离气体进口 30～ 6 0°处压强最低。环形通道内存在大量循环气流和强烈湍动 ,切向速度分量远大于径向速度分量 ,导致周向压强分布的非单调变化。

The flow pattern and pressure distribution in circle passage of a gas distributor was experimentally measured and studied with LDV. In the circle passage, the pressure is lowest at the point 30~60° away from the inlet of the distributor and the component velocity in tangential direction is greater than that in radial direction. The great deal of circulating gas and the strongly turbulent flow in the circle passage are the main factors causing the hoop pressure distribution varied in non monotonic way.