TY - JOUR
T1 - Flow characteristics of single-phase flow in narrow annular channels
AU - Zeng, Heyi
AU - Qiu, Suizheng
AU - Su, Guanghui
AU - Jia, Dounan
PY - 2008/12
Y1 - 2008/12
N2 - The characteristics of single-phase flow in narrow annular channels were analyzed and theoretical model was proposed. Based on the present model, the theoretical calculation was performed to predict the flow characteristics for the developed flow in narrow annuli with the gap sizes of 1.0, 1.5 and 2.0 mm, respectively. The results were in good agreement with the experimental data. In addition, the gap size of narrow annuli has great impact upon the flow characteristics. The decrease of gap size reduces friction factor. The higher the Reynolds number, the more remarkable the effect of gap size upon friction coefficient during single-phase flowing through narrow annular channels. The effect of gap size upon friction coefficient is dependent on the Reynolds number, and will decrease with the decrease of the Reynolds number.
AB - The characteristics of single-phase flow in narrow annular channels were analyzed and theoretical model was proposed. Based on the present model, the theoretical calculation was performed to predict the flow characteristics for the developed flow in narrow annuli with the gap sizes of 1.0, 1.5 and 2.0 mm, respectively. The results were in good agreement with the experimental data. In addition, the gap size of narrow annuli has great impact upon the flow characteristics. The decrease of gap size reduces friction factor. The higher the Reynolds number, the more remarkable the effect of gap size upon friction coefficient during single-phase flowing through narrow annular channels. The effect of gap size upon friction coefficient is dependent on the Reynolds number, and will decrease with the decrease of the Reynolds number.
KW - Friction pressure drop
KW - Narrow annuli
KW - Single-phase flow
UR - https://www.scopus.com/pages/publications/57249095752
U2 - 10.1007/s11708-008-0101-7
DO - 10.1007/s11708-008-0101-7
M3 - 文章
AN - SCOPUS:57249095752
SN - 1673-7393
VL - 2
SP - 466
EP - 470
JO - Frontiers of Energy and Power Engineering in China
JF - Frontiers of Energy and Power Engineering in China
IS - 4
ER -