Abstract
The Ranque–Hilsch vortex tube is a simple device with no moving parts and no mechanical operations. This device separates the inlet air into two distinctive regions; an outward high temperature region and an inner low temperature one.A computational study of the tube is presented in this article using an axisymmetric model using the ANSYS Fluent® software whose results showed good agreement with the experimental measurements. The effects of the tube length to diameter ratio and the cold orifice size on the performance of the tube were investigated.The results showed that length to tube diameter ratio (L/D) affects the performance of the tube, and that this effect changes when operating the tube at different cold mass fractions.The results showed also that the maximum cooling occurs at the lowest cold orifice to tube diameter ratio (dc/D) at the lowest cold mass fraction (μc) possible while the maximum heating occurs at the highest dc/D at the highest μc possible. Secondary circulations were investigated when operating at low dc/D values.In order to enhance the cooling capabilities of the tube fins were added to the tube to enhance the natural convection on the wall of the tube.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
