METHOD OF AND PROGRAM FOR CALCULATING EVALUATION INDEX FOR AGITATION PERFORMANCE

摘要

PROBLEM TO BE SOLVED: To provide a method of calculating, by a mathematical simulation, an index for quantitatively evaluating an agitation performance in the agitation process of molten glass.;SOLUTION: The conditions necessary for the agitation process are inputted to a molten glass model by a computer (S21), and the flow field of molten glass in the agitation process is obtained (S22). Next, a virtual tracer composed of N particles (N is an integer of ≥2) is generated at an optional position in the inlet of molten glass flow path with respect to the flow field (S23). Based on the optional position and the flow field, each trajectory of N particles flowed in from the optional position is obtained (S24). Then, based on the obtained trajectory of each particle, an evaluation index is calculated by dividing the ratio of (the sum of distances between adjacent particles in N particles at a prescribed time) to (the sum of distances between particles at a time after elapse of a predetermined time period from the prescribed time) by the predetermined time period (S25).;COPYRIGHT: (C)2004,JPO&NCIPI