SOLID-GAS TWO-PHASE FLOW SIMULATION PROGRAM USING GRID-FREE METHOD, STORAGE MEDIUM WITH THE PROGRAM STORED, AND SOLID-GAS TWO-PHASE FLOW SIMULATION DEVICE

摘要

PPROBLEM TO BE SOLVED: To provide a solid-gas two-phase flow simulation program using a grid-free method, a storage medium with the program stored, and a solid-gas two-phase flow simulation device, for precisely analyzing an analytic region without dividing it into calculation grids with a solid-gas two-phase flow in which particles coexist in an air flow as an object. PSOLUTION: This analytic method by the grid-free method includes: discretizing by a plurality of vortex elements, focusing attention on the vorticity field of a solid-gas two-phase flow in which micro-fine solid particles disperse in an air flow and flow while intereacting with the air flow; deriving a vorticity equation from a momentum conservation relation in consideration of the force of particles affecting the air flow; and calculating the behavior of vortex elements by the Lagrangian calculation of the vorticity equation, thus dispensing with division of the analytic region into calculation grids. PCOPYRIGHT: (C)2009,JPO&INPIT