THE INFLUENCE OF SECONDARY FLOW IN A TWO-PHASE GAS-SOLID SYSTEM IN STRAIGHT CHANNELS WITH A NON-CIRCULAR CROSS-SECTION

Main Article Content

Saša M. MILANOVIĆ Miloš M. JOVANOVIĆ Boban D. NIKOLIĆ Vladislav A. BLAGOJEVIĆ

Abstract

The paper considers two-phase gas-solid turbulent flow of pneumatic transport in straight horizontal channels with a non-circular cross-section. During turbulent flow, a specific flow phenomenon, known as secondary flow, occurs in these channels in the cross-sectional plane. The existence of strong temperature gradients in the cross-sectional plane of the channel or the cases of curved channels result in the appearance of the secondary flow of the first kind. However, in straight channels with a non-circular cross-section, in the developed turbulent flow mode, a secondary flow, known as Prandtl’s secondary flow of the second kind, is induced. The paper presents a numerical simulation of a developed twophase turbulent flow by using the PHOENICS 3.3.1 software package. Reynolds stress model was used to model the turbulence. The paper provides the data on the changes in turbulent stresses in the channel cross-section as well as the velocities of solid particles transported along the channel.

Article Details

How to Cite
MILANOVIĆ, Saša M. et al. THE INFLUENCE OF SECONDARY FLOW IN A TWO-PHASE GAS-SOLID SYSTEM IN STRAIGHT CHANNELS WITH A NON-CIRCULAR CROSS-SECTION. Thermal Science, [S.l.], v. 20, p. S1419-S1434, feb. 2017. ISSN 2334-7163. Available at: <http://thermal-science.tech/journal/index.php/thsci/article/view/1660>. Date accessed: 17 aug. 2017. doi: https://doi.org/10.2298/TSCI16S5419M.
Section
Articles
Received 2017-02-07
Accepted 2017-02-07
Published 2017-02-07

References

[1] Stevanović, Ž., Numerički aspekti turbulentnog prenošenja impulsa i toplote (Numerical Issues in Turbulent Momentum and Heat Transport – in Serbian), Faculty of Mechanical Engineering, University of Nis, Nis, Serbia, 2008
[2] Milanović, S., Investigation on Pneumatic Transport of Granular Matter of Noncircular Form in Turbulent Two Phase Flow in Straight Channels (in Serbian), Ph. D. thesis, Faculty of Mechanical Engineering, University of Nis, Nis, 2014
[3] Hanjalić, K., Opšte jednačine transportnih procesa (The General Equations of Transport Processes – in Serbian), Faculty of Mechanical Engineering, University of Sarajevo, Sarajevo, Bosnia and Herzegovina, 1976
[4] Sijerčić, M., Matematičko modeliranje kompleksnih turbulentnih transportnih procesa (Mathematical Modelling of Complex Turbulent Transport Processes – in Serbian), Yugoslav Society of thermal Engineers – Edition: Scientific Investigation Achievements, Belgrade, 1998
[5] Bogdanović, B., et al., Leteći pneumatički transport (Flying Pneumatic Transport – in Serbian), Faculty of Mechanical Engineering, University of Nis, Nis, Serbia, 2009
[6] Hanjalić, K., Mathematical Models of Turbulent Transport Processes (in Serbian), Proceedings, Proceedings information, Conference Dedicated to Academician Muhamed Riđanović, Bosnian and Herzegovinian Academy of Science and Art, Sarajevo, Bosnia and Herzegovina, 1984