散体渗流的分形行为及其计算机模拟

The Fractal Behavior of Bulk Seepage and Its Computerized Simulation

散体的颗粒和孔隙都具有不规则性、自相似性、模糊性和非线性等特点 ,且整体结构表现出复杂性。流体在散体中的随机运动 ,便形成了一种无序的渗流体系。作者利用重正化群方法 ,建立了二维渗流模型 ,分析了多孔散体介质中渗流的产生过程 ,并利用分形几何分析了散体渗流的分形特征并对其进行了计算机模拟。

Bulk granules and pores exhibit irregularity, self-similarity fuzziness and non-linearity. And further, the overall structure seems very complicated. A disorderly seepage system is formed as the flowing body undergoes random movement in the bulk system. Using the renormalization group method, a two-dimensional seepage model is established and the generating process of the seepage in the porous bulk media is analyzed. The fractal behavior of the bulk seepage is analyzed using fractal geometry and is simulated with computer.