Particle Tracing: Revisited [chapter]

M. Gharib, C. Willert
1989 Advances in Fluid Mechanics Measurements  
Particle tracing is a simple technique used to infer global quantitative information regarding velocity and vorticity fields from flow images. In this paper, recent advances in solving major drawbacks associated with conventional particle tracing are discussed. A quantitative automatic scheme which eliminates the photographic step and is capable of constructing the velocity field directly from the experimental set up is presented. Pf (pf is the fluid density and Pr is the particle density and
more » ... p is a typical large eddy tum-over trrne.) In general, it is important that particles be neutrally buoyant. However, since inertial and gravitational forces decrease rapidly with the particle size, particles with a size in the range of the local Kolmogorov scale should follow the flow correctly.
doi:10.1007/978-3-642-83787-6_3 fatcat:o2iib3zjlzeblau4omn42n56z4