熱線を用いたCO2軸対称噴流拡散場の二成分瞬間速度・瞬間濃度の同時計測

概要

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Simultaneous measurements of instantaneous two-component velocities and concentration are conducted in an axisymmetric CO2 turbulent jet diffusion field. Three probes are used. The first is the ‘double probe’ consisting of two concentration-sensitive I-type hot-wire probes for the simultaneous measurement of instantaneous axial velocity and concentration. The second is the ‘Chassaing type’ X hot-wire probe, which is insensitive to local concentration, for measurement of instantaneous two-component velocities in the CO2 diffusion field. The third is the composite probe consisting of the double and Chassaing-type X probe for simultaneous measurement of instantaneous two-component velocities and concentration. The results show that instantaneous two-component velocities and concentration of CO2 can be measured by using the present composite probe.