A Numerical Simulation of the Effect of Inlet Gas Temperature on the Energy Separation in a Vortex Tube
Year: 2014
Type: article
Abstract: The main objective of this paper is to study the effect of inlet gas temperature change on the fluid flow characteristics and energy separation phenomenon within a counter-flow vortex tube. The computational fluid dynamics (CFD) model is a three-dimensional steady compressible model that utilizes the k-ɛ turbulence model in order to analyse the high rotating flow. In this numerical research, different inlet gas temperatures have been used in the modeling in order to analyse the operation of the vortex tube. The results showed that increasing the inlet gas temperature leads to greater temperature separation, as well as greater hot and cold temperature separation. Moreover, it was found that increasing the inlet temperature does not have any significant effect on the stagnation point and maximum wall temperature position. Since this research concerns increased inlet gas temperatures, an implication of this study can be for vortex tubes to be used in procedures where heating or preheating is required.
Authors: NADER POURMAHMOUD, MASOUD RAHIMI, SEYYED EHSAN RAFIEE, AMIR HASSANZADEH
Institutions: Urmia University, Urmia University of Technology
Language: English
Topic: Ranque-Hilsch vortex tube
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4386643176