TY - GEN
T1 - Experimental study on double-diffusive convection during solidification of NH4Cl-H2O hypereutectic solution in cylindrical cavity
AU - Bai, Bofeng
AU - Lu, Jun
AU - Zhang, Lei
AU - Li, Heng
PY - 2009
Y1 - 2009
N2 - In order to reveal the law of double-diffusive convection of multi-compound solution in cylindrical cavity, experimental study on solidification of NH 4Cl-H2O hypereutectic solution has been performed by using particle image velocimetry(PIV). The influencing factors of flow patterns and intensity are also analyzed. The results show that: 1) There are two approximately symmetric main convection cells in the liquid which are down along the sidewall and up along the center of the cylindrical cavity. Meanwhile, there are also two secondary cells on the bottom corner of cylindrical cavity, which flow in contrary direction to that of the main ones; 2) Due to the release of water during the solidification process, solute layers and diffusive interface are developed in the liquid and will be disappeared in the end; 3) The cooling temperature and the initial concentration have significantly effects on the flow velocity, solute layers and diffusive interface.
AB - In order to reveal the law of double-diffusive convection of multi-compound solution in cylindrical cavity, experimental study on solidification of NH 4Cl-H2O hypereutectic solution has been performed by using particle image velocimetry(PIV). The influencing factors of flow patterns and intensity are also analyzed. The results show that: 1) There are two approximately symmetric main convection cells in the liquid which are down along the sidewall and up along the center of the cylindrical cavity. Meanwhile, there are also two secondary cells on the bottom corner of cylindrical cavity, which flow in contrary direction to that of the main ones; 2) Due to the release of water during the solidification process, solute layers and diffusive interface are developed in the liquid and will be disappeared in the end; 3) The cooling temperature and the initial concentration have significantly effects on the flow velocity, solute layers and diffusive interface.
UR - https://www.scopus.com/pages/publications/70149116586
M3 - 会议稿件
AN - SCOPUS:70149116586
SN - 9780791848487
T3 - 2008 Proceedings of the ASME Summer Heat Transfer Conference, HT 2008
SP - 713
EP - 718
BT - 2008 Proceedings of the ASME Summer Heat Transfer Conference, HT 2008
T2 - 2008 ASME Summer Heat Transfer Conference, HT 2008
Y2 - 10 August 2008 through 14 August 2008
ER -