Effect Study of Flow Boundary Layer Characteristics in Narrow Rectangular Channel by Longitudinal Vortex

HUANG Jun; HUANG Yan-ping; WANG Qiu-wang; MA Jian

Dec. 2010

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Article Navigation > Nuclear Power Engineering > 2010 > 31(S1): 29-33

HUANG Jun, HUANG Yan-ping, WANG Qiu-wang, MA Jian. Effect Study of Flow Boundary Layer Characteristics in Narrow Rectangular Channel by Longitudinal Vortex[J]. Nuclear Power Engineering, 2010, 31(S1): 29-33.

Citation:

HUANG Jun, HUANG Yan-ping, WANG Qiu-wang, MA Jian. Effect Study of Flow Boundary Layer Characteristics in Narrow Rectangular Channel by Longitudinal Vortex[J]. Nuclear Power Engineering, 2010, 31(S1): 29-33.

Citation:

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Effect Study of Flow Boundary Layer Characteristics in Narrow Rectangular Channel by Longitudinal Vortex

1. National Key Laboratory of Bubble Physics and Natural Circulation, Nuclear Power Institute of China, Chengdu, 610041, China;
2. State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China

Received Date: 2009-12-09
Rev Recd Date: 2010-03-05

Available Online: 2025-07-31

Abstract

Abstract

Longitudinal Vortex （LV） is produced by Longitudinal Vortex Generators （LVG）. The heat transfer enhancement mechanism of LV is based on the reducing and damaging of flow boundary layer. With relative long influence distance and simple structure,the LVGs can be used in narrow channels with flat surface. In this paper,Phase Doppler Particle Analyzer has be used to measure the flow field in narrow rectangular channel with LV. The experimental data of smooth and LVGs channels showed that the boundary layer is damaged by LV in single-phase water flow,and the calculation results of CFD showed that the velocity field with LV can be simulated by SST model in narrow rectangular channel.
- Longitudinal vortex generator,
- Narrow rectangular channel,
- Thermal boundary layer,
- Heat transfer enhancement,
- Water medium