The Flow Interactions and Control portfolio funds basic research on the motion and control of laminar, transitional and turbulent shear flows and their interactions with rigid and flexible surfaces. This research seeks to advance the fundamental understanding of complex, time-dependent flow interactions through theoretical, numerical and experimental approaches. Areas of interest include aerodynamic interactions in internal and external flows across a wide range of Reynolds numbers, with applications such as fluid-structure interactions in biology and micro-air vehicles. The portfolio emphasizes characterization, modeling, prediction and control of flow instabilities, turbulent motions and fluid-structure interactions in bounded and free-shear flows. Researchers are encouraged to submit short white papers outlining proposed efforts before submitting full proposals.