SJR: 0.161 SNIP: 0.312 CiteScore™: 0.1
ISSN Печать: 1065-3090
Выпуски:Том 27, 2020 Том 26, 2019 Том 25, 2018 Том 24, 2017 Том 23, 2016 Том 22, 2015 Том 21, 2014 Том 20, 2013 Том 19, 2012 Том 18, 2011 Том 17, 2010 Том 16, 2009 Том 15, 2008 Том 14, 2007 Том 13, 2006 Том 12, 2005 Том 11, 2004 Том 10, 2003 Том 9, 2002 Том 8, 2001 Том 7, 2000 Том 6, 1999 Том 5, 1998 Том 4, 1997 Том 3, 1996 Том 2, 1995 Том 1, 1993
Journal of Flow Visualization and Image Processing
PARTICLE IMAGE VELOCIMETRY AROUND THE VORTEX DIMPLE AT FREE SURFACE
The vortex-induced gas entrainment at free surface should be avoided in the reactor vessel of the liquid metal fast breeder reactor. Since the gas entrainment was induced by the small vortex dimple at free surface, the characteristics of the vortex dimple should be evaluated. In this study, the velocity distributions around the vortex dimple at free surface were measured by a new particle image velocimetry technique. The test section was the vertical cylindrical tank having a free surface. The vortex dimple was formed at the center of the cylindrical tank. The local three-dimensional velocity distributions around the vortex dimple were measured by the velocity vector histogram (WH) method, which was proposed by the authors. In the conventional WH method, a three-dimensional velocity vector histogram was constructed, which needed lots of computer memories. To improve the accuracy and to reduce the memories, a new algorithm were applied to the conventional WH method. In the construction of the histogram, the three-dimensional histogram was divided into three one-dimensional histograms, i.e., the projection histograms. With applying the new algorithm, the more accurate velocity distributions were calculated.
|Портал||Begell Электронная Бибилиотека||e-Книги||Журналы||Справочники и Сборники статей||Коллекции|