Publication detail

Vortex Tube: A Comparison of Experimental and CFD Analysis Featuring Different RANS Models

CHÝLEK, R. ŠNAJDÁREK, L. POSPÍŠIL, J.

Original Title

Vortex Tube: A Comparison of Experimental and CFD Analysis Featuring Different RANS Models

Type

conference paper

Language

English

Original Abstract

The Ranque–Hilsch vortex tube represents a device for both cooling and heating applications. It uses compressed gas as drive medium. The temperature separation is affected by fluid flow behaviour inside the tube. It has not been sufficiently examined in detail yet and has the potential for further investigation. The aim of this paper is to compare results of numerical simulations of the vortex tube with obtained experimental data. The numerical study was using computational fluid dynamics (CFD), namely computational code STAR-CCM+. For the numerical study, a threedimensional geometry model, and various turbulence physics models were used. For the validation of carried out calculations, an experimental device of the vortex tube of identical geometrical and operating conditions was created and tested. The numerical simulation results have been obtained for five different turbulence models, namely Standard k-ε, Realizable k-ε, Standard k-ω, SST k-ω and Reynolds stress model (RSM), were compared with experimental results. The most important evaluation factor was the temperature field in the vortex tube. All named models of turbulence were able to predict the general flow behaviour in the vortex tube with satisfactory precision. Standard k-ε turbulence model predicted temperature distribution in the best accordance with the obtained experimental data.

Keywords

vortex; tube; numerical model; cfd; turbulence;

Authors

CHÝLEK, R.; ŠNAJDÁREK, L.; POSPÍŠIL, J.

Released

23. 5. 2018

Publisher

XXI. International Scientific Conference - The Application of Experimental and Numerical Methods in Fluid Mechanics and Energy 2018 (AEaNMiFMaE-2018)

Location

Rajecké Teplice, Slovakia

ISBN

2261-236X

Periodical

MATEC Web of Conferences

Year of study

168

State

French Republic

Pages from

1

Pages to

12

Pages count

12

URL

https://www.matec-conferences.org/articles/matecconf/pdf/2018/27/matecconf_xxi.aeanmifmae-2018_02012.pdf

BibTex

@inproceedings{BUT147806,
  author="Radomír {Chýlek} and Ladislav {Šnajdárek} and Jiří {Pospíšil}",
  title="Vortex Tube: A Comparison of Experimental and CFD Analysis Featuring Different RANS Models",
  booktitle="XXI. International Scientific Conference - The Application of Experimental and Numerical Methods in Fluid Mechanics and Energy 2018 (AEaNMiFMaE-2018)",
  year="2018",
  journal="MATEC Web of Conferences",
  volume="168",
  pages="1--12",
  publisher="XXI. International Scientific Conference - The Application of Experimental and Numerical Methods in Fluid Mechanics and Energy 2018 (AEaNMiFMaE-2018)",
  address="Rajecké Teplice, Slovakia",
  doi="10.1051/matecconf/201816802012",
  issn="2261-236X",
  url="https://www.matec-conferences.org/articles/matecconf/pdf/2018/27/matecconf_xxi.aeanmifmae-2018_02012.pdf"
}