Visualization study on forced convective heat transfer of supercritical carbon dioxide (2) Improve of velocity measurement method

摘要

The knowledge of the thermo-fluid characteristics of supercritical fluid is important to develop the advanced supercritical water cooled nuclear reactor. In this study, visualization experiment for forced convection of the supercritical carbon dioxide was carried out. Using the measured images the velocity distribution was obtained with cross-correlation technique. To reduce the error of the reconstructed data, novel approach for the image analysis and advanced visualization technique were applied. For the visualization technique, the frame straddling was applied with infrared pulse laser. The spatial noise removal procedure was developed for the image analysis.