FLUID ANALYTIC SYSTEM HAVING WATER QUALITY PURIFICATION COUNTERMEASURE ELEMENT EVALUATING FUNCTION

PURPOSE:To provide the fluid analytic system having the water quality purification countermeasure element evaluating function which can take an efficient flow state analysis in a fluid analysis. CONSTITUTION:A water quality purification countermeasure element evaluation system in which a purification countermeasure element evaluating means for gate opening and closure, an underwater fan, a water conduit, a pump, etc., is incorporated external force term calculation data which vary in forcible flow velocity, border inflow amount, and forcible force with time by using a shallow water long wave equation as a mathematical model and reads external force term calculation data in repeatedly in each time step to perform flow rate calculation by calculating a forcible external force item and the external force term of a motion equation after setting a border water level and also calculates the water level by calculating the external force term of a continuous equation after setting the forcible water velocity and a border flow rate. Consequently, A water purification countermeasure which is varied in performance such as inflow and discharge amounts with time can be evaluated.