PHYSICAL PROPERTY CHANGE ESTIMATING PROGRAM IN GAS CONDUIT, PHYSICAL PROPERTY CHANGE ESTIMATING DEVICE AND PHYSICAL PROPERTY CHANGE ESTIMATING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a physical property change estimating program capable of inexpensively and precisely grasping a concentration change on the conduit downstream side when mixing ration of gas changes, in the physical property change estimating program in a conduit when using a transport conduit of the gas for transporting a plurality of kinds of gases different in a component.;SOLUTION: This physical property change estimating program enables a computer to execute processing for estimating physical property change behavior of the gas when changing the mixing ratio of the gas mutually different in a kind flowing in a gas conduit, and enables the computer to execute a step of determining a flow speed of the gas based on the mixing ratio with every first divided area of dividing an object range of estimating processing in the predetermined length and a step of determining the mixing ratio based on the flow speed with every second divided area of further dividing the first divided area in the respective times after starting estimation.;COPYRIGHT: (C)2011,JPO&INPIT