Mathematical simulation of Ranque-Hilsch energy separation effect for increasing of vortex tube energy efficiency
The description of the numerical model of gas flow appearing in Ranque- Hilsch vortex tube is made. This model was created for optimizing of geometry dimensions and operational characteristics of the vortex tube. Based on the results of performed numerical calculations the optimal length and the cone angel of double circuit vortex tube energy separation chamber was found: L = 3D... 4D,<i> α</i> = 0°... 4 Also it was found that maximum value of the isentropic energy efficiency of vortex tube corresponds to hot flow portion 20 %.