Numerical Study on the Oscillation Characteristic of the Static Gas Wave Refrigerator Influenced by the Design Parameters

摘要

In order to study the relation between the design parameters and the oscillation characteristic of the static gas wave refrigerator, the oscillation characteristic influenced by the design parameters including inlet pressure, width of the nozzle and the spliter location is analysed by means of numerical study. The results show that (1) the higher the inlet pressure is, the bigger the fluidic momentum and curvature radius of the fluidic attachment are. The further the attachment location is, the higher the controlling pressure at the port of the interconnection line is, while the smaller the switching time of the fluidic is;;(2)When the width of nozzle increases, the fluidic is more unstable and the switching time is shorter and attachment location is obviously further;;(3) with the decrease of the spliter location, the time to oscillate becomes shorter and the switching pressure becomes smaller.