Serpentine Flow (video) American Institute of Physics Loading video... Caption Entrainment of incense from still air into the flow induced by a serpentine plasma actuator. Credit R. Durscher, APRG Usage Restrictions This video may be used only with appropriate caption and credit. 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.