Turbulent Entrainment in Jets: The role of Kinetic Energy

摘要: In free shear flows the flow field can be divided into two distinct regions that find themselves separated by a thin contorted front entitled turbulent/nonturbulent interface. outer region is largely irrotational whereas in inner turbulent. Turbulent entrainment process through which fluid parcels from acquire vorticity, thus becoming Recently, classical assumption, where large scale “engulfing” motions are main responsible for jet growth [?], has been questioned e.g. Mathew ' Basu [?] and Westerweel et. al. [?]. Instead, these works provided ample support to original model of Corrsin Kistler mainly governed small eddy (“nibbling”).