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Based on the integral equation transformed from three dimensional Laplace equation and by the adoption of the division manner of sub- region boundary element method, the numerical computations of the velocity potential of each sub-region are given considering the continuity conditions of potential and normal derivatives at the interface of sub-regions. Therefore, computation of wave deformation in offshore flow field is realized. The present numerical model provides a good solution for the application of boundary element method to the calculation of wave deformation in large areas. 相似文献
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GPS测量得到的是WGS84坐标系下的坐标,而实际应用中较多使用的是北京54坐标,如何实现WGS84坐标系与北京54坐标系的转换,一直是GPS应用中的热点。本文详细介绍了GPS定位结果转换至北京54平面坐标系的两种坐标转换模型,并对实验结果进行了分析比较。 相似文献
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