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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F18%3APU128059" target="_blank" >RIV/00216305:26210/18:PU128059 - isvavai.cz</a>

Result on the web

<a href="https://www.matec-conferences.org/articles/matecconf/pdf/2018/27/matecconf_xxi.aeanmifmae-2018_02012.pdf" target="_blank" >https://www.matec-conferences.org/articles/matecconf/pdf/2018/27/matecconf_xxi.aeanmifmae-2018_02012.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/matecconf/201816802012" target="_blank" >10.1051/matecconf/201816802012</a>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20303 - Thermodynamics

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

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

ISBN

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ISSN

2261-236X

e-ISSN

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Number of pages

12

Pages from-to

1-12

Publisher name

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

Place of publication

Rajecké Teplice, Slovakia

Event location

Rajecké Teplice

Event date

Apr 25, 2018

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

000454319000015