The torpedo showing detached air cylinder and warhead, left, and afterbody
The dual-spinning projectile consists of two parts, that is, a forebody (with canards) and an afterbody
, and the two parts are connected through a ball bearing.
The work describes an initial effort to investigate the characteristics of stratified propane flames, formed through partial fuel-air premixing within a three-disk double-cavity arrangement, stabilized at the afterbody
disk and operated with periodic forcing of the velocity profile at the inlet to the premixing section.
[38.] Leschziner, M., Batten, P., and Craft, T., "Reynolds-Stress Modeling of Transonic Afterbody
Flows," The Aeronautical Journal, June 2001, pp.
Their calculations showed that a flat-faced cylindrical shape with a flared afterbody
was possible and if made of beryllium (the cylindrical part was assume to be the outer casing of the warhead) the resultant vehicle would be 134 pounds lighter than if composed of copper (Figure 6).
The experience indicated, when outside the boundary region is bigger than the model cross section characteristic size 20 times outside, may as far as possible avoid the separated vortex which afterbody
curls up projecting on in the boundary, also reflects outside, simultaneously also causes the boundary condition which the boundary vicinity flow field parameter distribution well and that raises to be accommodating, the basic solution may achieve the very good astringency.
The exact timing of changes to the XBT system (analog-to-digital acquisition system, change of probe nose, thermistor, twin wire, plastic afterbody
, wire coating, etc.) is not known.
The entire top afterbody
was replaced with one containing a good propeller-servicing door.
Liu, "Effects of afterbody
shape on flow around prismatic cylinders," Journal of Wind Engineering & Industrial Aerodynamics, vol.
The hand hygiene indication with the highest compliance rate was "before clean/aseptic procedure" (84.4%) followed by "afterbody
fluid exposure risk" (75.3%).
The Oyster 625 has about one metre more rig height than her predecessor, the 62, and clearly her lower slung and slightly heavier ballast keel was having good effect, combining with the increased form stability of her powerful afterbody
to make the boat feel a lot bigger than the 62."