Verification of applicability of the two-equation turbulence models for temperature distribution in transitional flow in an elliptical tube
Authors:
- Stanislaw Lopata,
- Pawel Oclon
Abstract
To increase the efficiency, elliptical tubes are often used in cross-flow heat ex-changers. For these kinds of heat exchangers the flow field in the tubes exhibits irregularities. Therefore, various flow regimes can be observed: the turbulent, the transitional, and even the laminar one. Therefore, applying typical turbulence models for numerical calculations may cause significant errors, when flow in the heat exchanger tubes is in the transitional or laminar regime. Hence, the average values of flow velocities and temperature in heat exchanger tubes can be calcu-lated incorrectly. The paper presents empirical verification of applying the basic two-equation turbulence models for a transitional flow of water in an elliptical pipe of a heat exchanger.
- Record ID
- CUT0c3759dcf0b941c38a3ec221b54d0931
- Publication categories
- ; ;
- Author
- Journal series
- Thermal Science, ISSN 0354-9836, e-ISSN 2334-7163
- Issue year
- 2019
- Vol
- 23, Suppl. 4
- Pages
- S1113-S1121
- Other elements of collation
- rys.; schem.; tab.; Bibliografia (na s.) - S1120-S1121; Bibliografia (liczba pozycji) - 19; Oznaczenie streszczenia - Streszcz. ang.; Numeracja w czasopiśmie - Vol. 23, Suppl. 4
- Conference
- 11th International Conference on Computational Heat and Mass Transfer (ICCHMT 2018), 2018, 28-05-2018 - 01-06-2018, Kraków, Polska
- Keywords in English
- transitional flow, heat transfer, experimental investigation, turbulence model
- DOI
- DOI:10.2298/TSCI19S4113L Opening in a new tab
- URL
- http://thermalscience.vinca.rs/2019/supplement-4/10 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 40
- Additional fields
- Indeksowana w: Web of Science
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT0c3759dcf0b941c38a3ec221b54d0931/
- URN
urn:pkr-prod:CUT0c3759dcf0b941c38a3ec221b54d0931
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