Upward and Downward Flow (IMAGE) Gauss Centre for Supercomputing Caption Researchers at IKE and ITLR at the University of Stuttgart are studying supercritical carbon dioxide could replace supercritical water as a working fluid at power plants. This simulation shows the structure and the (red) high and (blue) low speed streaks of the fluid during a cooling process. The researchers observed a major difference in turbulence between downward flowing (left) and upward flowing (right) supercritical carbon dioxide. Credit IKE, University of Stuttgart Usage Restrictions Full attribution. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.