The torpedo showing detached air cylinder and warhead, left, and
afterbody, right
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."