Worth, and J. Dawson, "The formation of vortex rings in a strongly forced round jet," Experiments in Fluids, vol. 52, pp. 729- 742, 2012.o Aydemir, E, Worth NA, Dawson JR (2012) The formation of vortex rings in a strongly forced round jet. Experiments in fluids 52(3):729-742....
In addition,the evolution of the secondary vortex rings after their formation and its effects on the main vortex core during its rolling over the periphery of the main vortex rings have been discussed.Furthermore,as n=4.0,the length ... HH Zhang,ZH Chen,XH Jiang,... - 《Tuijin Jishu/jo...
Energy of a Vortex Ring in a Tube and Critical Velocities in Liquid Helium II Various authors have suggested that critical velocities vin liquid helium II may result from the formation of vortex rings according to Landau's criterion,... JC Fineman,CE Chase - 《Physical Review》 被引量: 12发...
VORTEX RINGSSTRATIFIED FLUIDSMIXINGA numerical study of the formation and transport of vortex rings in a cylindrical tank initially occupied by a thermally stratified fluid is presented. A control-volume based finite-difference technique (Patankar's SIMPLER method) is used. The formation of a vortex...
A simple model for the experimentally observed instability of the vortex ring to azimuthal bending waves of wavelength comparable with the core size is pre... SE Widnall,DB Bliss,Tsai, Chon-Yin - 《Journal of Fluid Mechanics》 被引量: 458发表: 1974年 On the formation of vortex rings: Roll...
Previous studies have postulated that these vortex rings deform and fold as they convect downstream, which culminates in the formation of vortex loops at both the upstream and the lee-side of the jet column. In this paper, we take a fresh look at the vortical structures of JICF in water ...
The formation of vortex rings generated by an impulsively started jet in the presence of uniform background co-flow is studied experimentally to extend pre... PS Krueger,JO Dabiri,M Gharib - 《Journal of Fluid Mechanics》 被引量: 72发表: 2006年 Photochemical Effects in the Heterogeneous Reactio...
J Steinhoff,D Underhill - 《Physics of Fluids》 被引量: 257发表: 1994年 On the Formation of Vortex Rings The production of a vortex ring formed by using a piston to drive fluid through an orifice is considered. A cylindrical vortex sheet is supposed to be form... PG Saffman - 《Studies...
Based on the impulse law, it is speculated that the fluid force generated by the formation of the rear vortex rings can be enhanced. Therefore, the strong interaction between wake vortices can actually improve the propulsive efficiency of the biological systems by operating the formation of large-...
It is concluded that whistling can be included in the same class of sound sources as the Rayleigh bird call and the Pfeifentne, since the essential mechanism for exciting them depends on the instability of a jet to the formation of vortex rings and the interaction of the rings with a rigid...