Experimental, computational and optimization studies of temperature separation and flow physics of vortex tube: A review

Justification of the calculation methods of the main parameters of vortex chambers

“…The above relations are based on an analysis of the results of the studies [10][11][12], in which the models of swirling dispersed circular flows in a smooth cylindrical tube with a swirler are considered, nu merical study of models, experiments of mixing oppositely swirled flows and others are experimentally investigated.…”

“…Calculation and choice of the design of such apparatus is associated with the need to preliminarily determine the radial velocity of dust particles of a given disperse composition, the flow rates of the flow from the channels of the blade-shaped swirlers, the velocity of the secondary flow out of the nozzles, and the like. As noted in [9][10][11], the theory of operation of these apparatus has not yet been improved and does not make it possible to calculate apparatuses of various designs. By this time only the empirical method is possible to solve the issue of beneficial design forms of dust collecting apparatus.…”

Heat pump model for Ranque–Hilsch vortex tubes

“…Vortex tubes can vary substantially in their geometry and their performance [11,14,15], but we would like at least some very rough estimates. a is relatively straightforward to estimate, since it follows directly from measurements of the radial pressure profile.…”

“…Behera et al found that the simulations with smaller cold end diameters more closely matched the model put forth by Ahlborn et al, but that the simulations with larger cold end diameters did not closely match that model and had substantially larger temperature separations. In general, computational studies have played an important role in vortex tube research, addressing a wide variety of issues involving vortex tube flow and temperature separation [11][12][13][14][15].…”

The Effect of Orifice Diameter to the Acoustic Signals Captured at the Cold Part of a Ranque-Hilsch Vortex Tube

“…However, the performance of the device was not in linear relation with the orifice diameter. This experimental study is also done by other researchers such as Thakera [2] and Nimbalkar [3]. The visualisation of the device was done by Istihat et al [4] using a transparent tube with bigger scale from the actual RHVT.…”