Optical Flow Velocimetry (OFV)

Optical flow velocimetry, or OFV, is a state-of-the-art global flow diagnostics technique developed for global flow velocity measurements based on image intensity changes.  Due to its fundamental working principle, the physics-based optical flow equation, OFV can provide data with an extremely high spatial-resolution (one data point per pixel). In the past, OFV has been successfully used to extract velocity data from various experiments such as planetary cloud-tracking, residential buildings, airfoils, wings, ground vehicles, and wind turbines.  In addition to velocity data, OFV can extract pressure data, further expanding the OFV possibilities and/or usefulness in experimental fluid mechanics.