ESTIMATION METHOD FOR FLUID RESISTANCE COEFFICIENT OF RESISTOR AND ESTIMATION SYSTEM FOR THE SAME, AND ESTIMATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a system for estimating a fluid resistance coefficient of a resistor such as a perforated plate, by generating arc discharge inside a semi-airtight container.;SOLUTION: A system for estimating a fluid resistance coefficient of a resistor comprises: an experimental device I including a semi-airtight container 1 in which a detachable perforated plate 2 is disposed, electrodes 3A and 3B for generating arc discharge inside the semi-airtight container 1, and a pressure sensor 5 for detecting pressure change in the semi-airtight container 1; and arithmetic processing means II. The arithmetic processing means calculates an arc energy characteristic showing temporal change of arc energy accompanying the arc discharge, calculates relation of a peak value of total pressure rise with respect to a fluid resistance coefficient of the whole system which is the semi-airtight container 1 on the basis of the arc energy characteristic by means of numerical simulation and identifies a fluid resistance coefficient on the basis of a peak value of pressure rise at a predetermined position in the semi-airtight container 1 actually measured by the pressure sensor 5, where the identification processing is performed in the case that the perforated plate 2 is disposed in an open duct line 1A and in the case that the perforated plate 2 is not disposed to calculates difference between fluid resistance coefficients in the cases.;COPYRIGHT: (C)2014,JPO&INPIT