%0 Journal Article
%A YANG Fei
%A YANG Wen jun
%A WANG Li hua
%T Preliminary Analysis of Back tracking Interpolation in ELCIRC Model
%D 2013
%R 10.3969/j.issn.1001-5485.2013.06.022
%J Journal of Changjiang River Scientific Research Institute
%P 99-102
%V 30
%N 6
%X The numerical algorithm of ELCIRC (Eulerian Lagrangian CIRCulation) has an important advantage: the total derivatives of the horizontal normal velocity are discretized using Lagrangian back tracking. The use of accurate tracking algorithms is strongly recommended for this Eulerian Lagrangian simulation. Tracking errors in inverse bilinear mapping for quadrangles is discussed and a more simple iterative method is recommended. A calculation example of bend flume shows that this iterative method has the same accuracy and computational efficiency with the original method.
%U http://ckyyb.crsri.cn/EN/10.3969/j.issn.1001-5485.2013.06.022