A computer-aided visualization method for flow analysis

This paper presents a non-contact method for velocity field calculation from a series of images containing illuminated planar layer of fluid with a pollutant mixed in. Velocity field is calculated using a model similar to optical flow based on the advection-diffusion equation. The model which was also implemented into our software, ADMflow, is evaluated on different sets of synthetic images. Calculated velocity fields are in a good agreement with the true velocity fields, mostly deviating by less than 10% in magnitude and 1° in flow direction.