The governing equations were discretized using a finite volume method on a bipolarcoordinate system.
在双极坐标系内，利用有限体积法对控制方程离散求解。
2
The bipolarcoordinate system in which the two boundary circles of eccentric annuli become the coordinate surfaces is used.
使用双极坐标系研究流体在偏心环空内的流动。
3
An approach of mapped with bipolarcoordinate and reduce noisy is used to normalize iris image in this paper, and annularity image with different centre is mapped onto bipolarcoordinate efficiently.