Airflow patterns around a Gurney flap. (IMAGE) American Institute of Physics Caption Airflow patterns around a Gurney flap. Credit Liming Wu, Xiaomin Liu, Yang Liu, and Guang Xi Usage Restrictions Journalists may use this image only with appropriate credit. License Original 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.