Search: onr:"swepub:oai:research.chalmers.se:91c79fd4-d944-41e6-882c-5cc408412324" >
Large Eddy Simulati...
Large Eddy Simulation of the flow and heat transfer in a half-corrugated channel with various wave amplitudes
-
- Mirzaei, Maryam, 1982 (author)
- Yazd University
-
- Sohankar Esfahani, Ahmad, 1958 (author)
- Isfahan University of Technology
-
- Davidson, Lars, 1957 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
show more...
-
- Innings, F. (author)
- Tetra Pak,Tetra Pak International
-
show less...
-
(creator_code:org_t)
- Elsevier BV, 2014
- 2014
- English.
-
In: International Journal of Heat and Mass Transfer. - : Elsevier BV. - 0017-9310. ; 76, s. 432-446
- Related links:
-
http://dx.doi.org/10...
-
show more...
-
https://doi.org/10.1...
-
https://research.cha...
-
show less...
Abstract
Subject headings
Close
- Large Eddy Simulation (LES) of turbulent flow and convective heattransfer over a half-corrugated channel is presented in this paper. Simulationsare performed for various ranges of the normalized wave amplitudes,AM = 0 − 0.15 (the ratio of wave height to wave length). The Reynoldsnumber based on the bulk velocity is chosen as Reb = 10 000 and thePrandtl number is Pr=0.71. A comparison between the DNS and LESresults of a plane channel (AM = 0) at Re = 395 is also performed.The obtained results indicate that the region of recirculating flow dependsstrongly on the wave amplitude. This study shows that the Nusseltnumber (Nu) increases by increasing the wave amplitude until a specificvalue then it remains approximately constant. The thermal performanceparameter (JF) is used as a measure for the heat transfer enhancementrelative to the pressure drop and it is found that the maximum values ofNu and JF appear at AM = 0.1, which hence correspond to the optimumvalue of the wave amplitude.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
Keyword
- Large Eddy Simulation (LES)
- Turbulent flow
- Wave amplitude
- Half-corrugated channel
- Optimum value
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database