R. D. Joslin is a permanent Program Director in the Engineering Directorate at the US National Science Foundation in Alexandria, Virginia. He manages the Fluid Dynamics Program and other cross-Foundation programs. Dr Joslin was previously a Program Manager at the Office of Naval Research, where he managed the Turbulence, Stratified Wakes, Submarine Maneuvering, Ocean Energy, Multi-Platform Interactions and Supercaviation Programs. He is a member of the American Physical Society (APS), American Society of Mechanical Engineers (ASME) and is an Associate Fellow in the American Institute of Aeronautics and Astronautics (AIAA). His areas of expertise include fundamental fluid mechanics, turbulence and transition, stability theory, DNS/LES/CFD, supercavitation and renewable energy.