The Criterion of Choosing the Proper Seeding Particles

摘要: This paper is focused on the problem of ability seeding particles to follow flow field. One most important factors influencing resultant accuracy measurement using proper for feeding when measuring by PIV (Particle Image Velocimetry) method. The aim provide comprehensible instruction choosing type with regard characteristics and required accuracy. presents two methods help which it possible determine particles' first method based direct calculation phase lag amplitude ratio between particle fluid. solution BBO (Basset Boussinesq Oseen) equation spherical particle. other results from time response, defines maximum frequency disturbances, are be followed In conclusion, proposed, depending