Abstract
Temperatures, pressures and velocities were measured in a Ranque-Hilsch vortex tube. Results show that the cooling power is larger than the heating power due to a heat loss to the surroundings. This heat loss became the more dominant thermodynamic process at large cold fractions (the ratio of cold mass flow over total mass flow). The velocities were obtained by means of Laser Doppler Anemometry. By this method, the three dimensional velocities of the gas and their standard deviations in the vortex tube are revealed by an non-intrusive measurement method. The turbulent fluctuations, characterized by the standard deviations, show that the turbulence is isotropic in the core region of the vortex tube.
Original language | English |
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Title of host publication | 6th European Thermal Sciences Conference (Eurotherm 2012),September 04 - 07, 2012, Poitiers, France |
Publisher | Institute of Physics |
Pages | 012066- |
DOIs | |
Publication status | Published - 2012 |
Event | 6th European Thermal Sciences Conference, EUROTHERM 2012 - Poitiers, France Duration: 4 Sept 2012 → 4 Sept 2012 Conference number: 6 |
Publication series
Name | Journal of Physics: Conference Series |
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Volume | 395 |
ISSN (Print) | 1742-6588 |
Conference
Conference | 6th European Thermal Sciences Conference, EUROTHERM 2012 |
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Abbreviated title | EUROTHERM 2012 |
Country/Territory | France |
City | Poitiers |
Period | 4/09/12 → 4/09/12 |