Experimental Flume (VIDEO) University of Cambridge This video is under embargo. Please login to access this video. Caption The circular flume allows researchers to study the long-term movements of sand dunes. Credit University of Cambridge Usage Restrictions Credit University of Cambridge 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.