旋涡管内的能量分离

Energy Separation in a Vortex Tube

改变旋涡管切向喷进速度以对旋涡管进行管内能量分离研究.结果表明旋涡管内能量分离效果主要取决于切向喷进速度.在亚声速区,分离效果与旋涡管喷嘴出进口压力比呈线性关系,且与喷嘴进口压力无关;最大能量分离效果发生在临界压力比附近,且受喷进压力影响,能量分离过程主要发生在旋涡管的前三分之一管段。还对最大能量分离效果进行了分析.

To investigate energy separation in a vortex tube was made by changing tangential jet inlet velocity. Results indicate that energy separation effect in a vortex tube depend mainly on tangential inlet velocity. When tangential jet inlet velocity is smaller than the sonic velocity, separation cffcct is nearly an inverse linear runction or the exit and inlet pressure ratio at a vortex tube nozzle and it is no relation to pressure at the inlet or the noz- zle. The maximum effcct or energy separation is located near the position or the critical pressure ratio while they are affected by the inlet pressure. The main energy separation process takes place in the first 1 / 3 region or the vortex tube . The maximum energy sepa- ration errcct was theoretically analysed