基于Koch曲线的土体孔隙三维可视化仿真

土壤孔隙结构三维可视化是定量化研究和理解土体结构及土壤特性的重要基础。提出一种三维Koch曲线建模算法及基于Koch曲线的土壤孔隙三维可视化方法。应用广义能量极小值原理确定Koch曲线上转折点坐标;根据特定土壤土体孔隙结构特征进行土体孔隙三维重建,具体过程包括土体孔径变化控制、土体孔隙逐层绘制、土体孔隙分布控制和土体孔隙参数交互式控制。验证分析表明,在计算机上重建的土体孔隙能较好地表现特定土壤土体孔隙结构特征,具有较强真实感。

Three Dimensional Visual Simulation of Soil Channels Based on Koch Curve

The three dimensional visual of soil pore structure is the vital foundation of studying and understanding soil structure and characteristics quantificationally. An arithmetic of constructing three dimensional koch curve was put forward. After that, the three dimensional visual method of soil pore based on koch curve was worked out. Minimal value principle of generalized energy was applied to compute coordinates of turning point on koch curve. The three dimensional structure of soil pore was reconstructed based on the given soil pore structure characteristics, main courses of which included variational control of soil aperture, soil pore drawing layered, distributing control of soil channels and interacting control by transfering soil pore parameters. The result of verifying analysis indicates that the built soil pore by this method has such enough real senses that represent characteristics of given soil pore structure preferably.