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 been 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.
| Original language | English |
|---|---|
| Pages (from-to) | 29-33 |
| Number of pages | 5 |
| Journal | Hedongli Gongcheng/Nuclear Power Engineering |
| Volume | 31 |
| Issue number | SUPPL. 1 |
| State | Published - May 2010 |
Keywords
- Heat transfer enhancement
- Longitudinal vortex generator
- Narrow rectangular channel
- Thermal boundary layer
- Water medium