Abstract
In temperature measurement of fluid flows, heat conduction along the temperature sensor body and its support may cause large measurement errors. In the present study, a novel theoretical scheme for estimating the heat-conduction error has been proposed to obtain accurate temperature measurements in flow fields with mean-temperature gradients. The validity of the scheme has been verified experimentally to appraise the reliability and applicability of the present physical model for analyzing the heat-conduction error. The results show that the proposed scheme enables us to evaluate accurately the heat-conduction error in temperature measurement and provides not only a useful guideline for selecting appropriate temperature sensors but also a reliable method for compensating for the heat-conduction error in fluid-temperature measurement.
