Slit Wall and Heat Transfer Effect on the Taylor Vortex Flow

Dong Liu, Ying-Ze Wang, Wei-Dong Shi, Hyoung-Bum Kim and Ai-Kun Tang
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Dong Liu: School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China
Ying-Ze Wang: School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China
Wei-Dong Shi: Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China
Hyoung-Bum Kim: School of Mechanical and Aerospace Engineering, Gyeongsang National University, Jinju 660-701, Korea
Ai-Kun Tang: School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China

Energies, 2015, vol. 8, issue 3, 1-17

Abstract: The Taylor vortex flow in the plain model with a constant temperature gradient effect was studied by experimental measurement, and the preliminary features of Taylor vortex flow affected by heat transfer process were obtained. This flow field in the plain model was also studied by numerical simulation. The reliability of numerical simulation was verified by comparing the numerical results with the experimental ones. To study the slit wall effect on this flow regime under the same temperature gradient conditions, another three models with different slit numbers (6, 9 and 12) were considered. The vortex pairs were found to have a motion along the axial direction. Because of the existence of the temperature gradient, the axial flow in the annulus gap was enhanced, but the radial velocity near the inner cylinder was found to be weakened. The heat flux generated by the inner cylinder was also compared among different models, and it was found that the heat flux generated by the 6-slit model was increased by 4.5% compared to that of the plain model, and the 12-slit model generated the maximum heat flux, which has the best heat transfer ability.

Keywords: Taylor vortex flow; heat transfer; slit number; particle image velocimetry (PIV); numerical simulation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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