Numerical Study of Heat Transfer and Fluid Flow in Rectangular Narrow Channel with Periodically Mounted Longitudinal Vortex Generators

WANG Ling; HUANG Jun; WANG Qiu-wang; HUANG Yan-ping

Sep. 2007

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Article Navigation > Nuclear Power Engineering > 2007 > 28(3): 27-31

WANG Ling, HUANG Jun, WANG Qiu-wang, HUANG Yan-ping. Numerical Study of Heat Transfer and Fluid Flow in Rectangular Narrow Channel with Periodically Mounted Longitudinal Vortex Generators[J]. Nuclear Power Engineering, 2007, 28(3): 27-31.

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Numerical Study of Heat Transfer and Fluid Flow in Rectangular Narrow Channel with Periodically Mounted Longitudinal Vortex Generators

1. School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China;
2. State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, 710049, China;
3. National Key Laboratory of Bubble Physics and Natural Circulation, Nuclear Power Institute of China, Chengdu, 610041, China

Received Date: 2006-07-21
Rev Recd Date: 2006-09-13

Available Online: 2025-07-21

Abstract

Abstract

Heat transfer enhancement for convective channel flows is often obtained by some ribs periodically mounted on the heat transfer surface which induces vortices to augment transverse fluid mixing.In this paper,the performance of turbulent flow and heat transfer in a narrow rectangular channel with periodically roughened by rectangular bars as LVGs are studied by numerical simulation for water with Reynolds number ranging from 1.5×10⁴ to 3.5×10⁴,the effect of the height of LVGs,angle of incidence,space between LVGs were also analyzed.It was found that the LVGs are able to greatly improve the comprehensive heat transfer performance.The best effect of heat transfer could been obtained when the incidence angler equals to 50°.
- Longitudinal vortex generators,
- Numerical simulation,
- Heat transfer enhancement