DIFFUSION METHOD OF CREATING VISCOUS FINGERING USING DIFFUSION LIMITED AGGREGATION

摘要

The present invention relates to a single-phase simulation method for generating a viscous fingering effect using diffusion limited aggregation (DLA) which does not rely on a polyphase simulation or a high-resolution simulation, and according to the present invention, a realistic viscous fingering effect is generated and a fluid simulation is simply performed by realizing a single-phase fluid simulation through the DLA. Also, an external force area based on the DLA is generated in a preprocessing step, thereby remarkably reducing operation costs spent on an existing fluid simulation and obtaining a simulation result in a short time. [Reference numerals] (AA) DLA particle tree generation;(BB) Fluid movement area determination;(CC) Short branch elimination;(DD) Particle direction diffusion;(EE) New type feedback control;(FF) External force;(GG) Fluid simulation;(HH) First step;(II) Second step;(JJ) Third step