Abstract
Detailed turbulent flow profiles have been measured on a square sub-channel geometry with typical mixing devices. For a fine examination of the lateral flow structure on a sub-channel geometry with 2D LDA, a 5 × 5 rod bundle array was fabricated as 2.6 times larger than the real bundle size. The mixing devices used were a typical split type and a swirl type. The experiments were performed at the condition of Re = 48,000 (axial bulk velocity 1.48 m/s) and the water loop was maintained at the conditions of 35 °C and 1.5 bar during an operation. As for the results, distinct intrinsic flow features were observed according to the type of mixing devices. In a typical split type, there was no remarkable swirling flow within a sub-channel and the lateral flow was vigorous in the gaps. In the swirl type, a single swirling flow was dominant within a sub-channel and there were relatively small lateral flows in the gaps.
| Original language | English |
|---|---|
| Pages (from-to) | 600-609 |
| Number of pages | 10 |
| Journal | Nuclear Engineering and Design |
| Volume | 238 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2008 Mar 1 |
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ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Nuclear Energy and Engineering
- Civil and Structural Engineering
- Mechanical Engineering
- Safety, Risk, Reliability and Quality
Cite this
Phenomenological investigations on the turbulent flow structures in a rod bundle array with mixing devices. / Chang, Seok Kyu; Moon, Sang Ki; Baek, Won Pil; Choi, Young Don.
In: Nuclear Engineering and Design, Vol. 238, No. 3, 01.03.2008, p. 600-609.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Phenomenological investigations on the turbulent flow structures in a rod bundle array with mixing devices
AU - Chang, Seok Kyu
AU - Moon, Sang Ki
AU - Baek, Won Pil
AU - Choi, Young Don
PY - 2008/3/1
Y1 - 2008/3/1
N2 - Detailed turbulent flow profiles have been measured on a square sub-channel geometry with typical mixing devices. For a fine examination of the lateral flow structure on a sub-channel geometry with 2D LDA, a 5 × 5 rod bundle array was fabricated as 2.6 times larger than the real bundle size. The mixing devices used were a typical split type and a swirl type. The experiments were performed at the condition of Re = 48,000 (axial bulk velocity 1.48 m/s) and the water loop was maintained at the conditions of 35 °C and 1.5 bar during an operation. As for the results, distinct intrinsic flow features were observed according to the type of mixing devices. In a typical split type, there was no remarkable swirling flow within a sub-channel and the lateral flow was vigorous in the gaps. In the swirl type, a single swirling flow was dominant within a sub-channel and there were relatively small lateral flows in the gaps.
AB - Detailed turbulent flow profiles have been measured on a square sub-channel geometry with typical mixing devices. For a fine examination of the lateral flow structure on a sub-channel geometry with 2D LDA, a 5 × 5 rod bundle array was fabricated as 2.6 times larger than the real bundle size. The mixing devices used were a typical split type and a swirl type. The experiments were performed at the condition of Re = 48,000 (axial bulk velocity 1.48 m/s) and the water loop was maintained at the conditions of 35 °C and 1.5 bar during an operation. As for the results, distinct intrinsic flow features were observed according to the type of mixing devices. In a typical split type, there was no remarkable swirling flow within a sub-channel and the lateral flow was vigorous in the gaps. In the swirl type, a single swirling flow was dominant within a sub-channel and there were relatively small lateral flows in the gaps.
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U2 - 10.1016/j.nucengdes.2007.02.037
DO - 10.1016/j.nucengdes.2007.02.037
M3 - Article
AN - SCOPUS:39349112519
VL - 238
SP - 600
EP - 609
JO - Nuclear Engineering and Design
JF - Nuclear Engineering and Design
SN - 0029-5493
IS - 3
ER -