Cylindrical Bodies

Circular cylinder. The mass exchange between a circular cylinder of radius a and a uniform translational flow whose direction is perpendicular to the generatrix of the cylinder was considered in [186,218] for low Peclet and Reynolds numbers Pe = Sc Re and Re = aU-Jv. For the mean Sherwood number (per unit length of the cylinder) determined with respect to the radius, the following two-term expansions were obtained  

The difference between experimental data on the cylinder-gas flow heat exchange (Sc = 0.72) and the results obtained by the first formula in (4.4.25a) is less than 3% for Re 0.2 [186]. 

Cylinder of arbitrary shape. Let us consider mass exchange for cylindrical bodies of arbitrary shape in a uniform translational flow of viscous fluid at small 

Peclet numbers. To obtain the leading term of the expansion as Pe — 0, we proceed as follows. Consider the auxiliary equation 

For each w satisfying condition (4.4.27), the leading terms of the asymptotic expansions for Eqs. (4.4.26) and (4.4.28) with the same boundary conditions coincide in the inner and outer regions. Therefore, as Pe - 0, in the diffusion equation one can replace the actual fluid velocity field v by w. This fact allows one to use the results presented later on in Section 4.11. Namely, as w we take the velocity field for the potential flow of ideal fluid past the cylinder. This approximation yields an error of the order of Pe in the inner expansion. By retaining only the leading terms in (4.11.15), we obtain the dimensionless diffusion flux at small Peclet numbers in the form 

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Fig.3 shows comparison of calculated temperature distribution along the coordinate Z of a kiln cylindrical body with an experimental one. 

Fig. 3.12 Ink bottle pores with (o) cylindrical body and (/>). (c). tapering body the neck is cylindrical in each case.

The cylindrical body then travels to the flanger where the top and bottom edges are curled outward to form the flange. RoU or die-necking are incorporated to reduce the can body diameter on each end in combination with flanging. 

The use of vertical tubes is associated with Robert, and this type is sometimes known as the Robert or Standard Evaporator. A typical form of vertical evaporator is illustrated in Figure 14.18, in which a vertical cylindrical body is used, with the tubes held between two horizontal tube plates which extend right across the body. The lower portion of the evaporator is frequently spoken of as the calandria section shown in Figure 14.19. Tubes... 

Reaction cell. 1 Cylindrical body with 80 mm o.d. and 30 mm i.d. 2 Sealing cones. 3 Threaded screws. 4 Sapphire windows. 5 Opening for the introduction of a burner. 6 Openings for a sheathed thermocouple and two capillaries... 

A yoke A attached to a cylindrical body M carries a threaded spindle B operated by a handle C. It is attached to a metal bellows Z) by a ball-and-socket joint E. By this means the annular knife-edge Fean be thrust into the... 

An artillery projectile may be either solid or hollow. Hollow projectiles may be filled with explosive or inert material, depending on the type. Artillery projectiles, although differing in characteristic details, are of the same general shape in that they have a cylindrical body and generally an ogival or conical head (or windshield). 

Typical AP-T (Armor-Piercing-Tracer) Artillery Projectile, such as used in 120-mm AP-T Separated Projectile M358, is shown in Fig 1-7. Its solid cylindrical body (called "slug" or "shot ), made of hardened steel, has a pointed nose, a flat base and two gilding metal rotating bands. A tracer is inserted in the cavity of the base. The nose of proj is covered with a metallic (such as of forged Al) windshield (also known as "ballistic cap" or false ogive"), which makes the... 

Smoke Rifle Grenade, WP, M19A1 with MID Fuze, shown in Fig l-20g, consists of three basic pgrts the body, the fuze, and the stabilizer, made of steel. The cylindrical body, 2-inches in diameter, is made of sheet steel and is fitted with a rounded ogive. It is filled with 8.5 oz of white phosphorus and is completely sealed to prevent the entrance of air. The fuze is MID (mechanical impact detonating) type. 

Hand Grenade Fuze, M215, shown on Fig 1-100, was developed for use with hand grenade M26A2 (shown on Fig l-20c in Section 4, Part B). Its cylindrical body,... 

M78, M79 and Flare Set AN/ALA-17. Of these only T6, T7 T8 have short cylindrical bodies about equal to their diameters (ca 5.4 inches). All other types consist of cylinders which are 5-6 times as long as their diameters... 

Tail Fuze M190 is an inertial type consisting of a fuze-body assembly, arming assembly, flexible shaft, and arming-vane assembly. Its cylindrical body of 1.5-inches diam and 6.89-in length is threaded externally for assembly to the fuze adapter of... 

PO 6, Hollister, Calif, 95023) consists of a stainless steel, hollow, cylindrical body ca 1.67-inches long, which can be hermetically closed. It contains three charges donor, receptor, and main chge, all of them secondary HE compns. Complete elimination of primary expl compns makes these devices safer to handle than other types of initiators. The main chge generates 3900 to 4500 psi within 0.4 millisecs in a closed volume of 10 cc. The method of initiating the TBI was not reported... 

Suppose a rigid flat surface supports an explosive layer, which is subject to impact by a rigid cylindrical body (of diameter D) with flat base. Fig 6a illustrates impact on a layer of high density, and Fig 6b impact on a layer of low density, for example bulk density. In the latter case, the explosive should be strongly compacted in the impact zone before a significant pressure rise begins. The deformation... 

Type 1 No 7 Mk 6 Model 3 Modification Bomb consisted of a sheet steel cylindrical body contg 182 cylindrical pellets arranged around a central cardboard tube contg gray igniter mixture (Ba nitrate 75, A1 24.5, oil 0.3 moisture 0.2%). 

Flares for 50-mm Type 10th Year Flare Discharger (p 238 Fig 388 on p 239) had heavy cardboard cylindrical bodies, 6-1/8 inches long, filled with various color flare compositions. A proplnt container was attached at the base ... 

Type 0 Parachute Flares Model 2 and Model 3, Modification 1 consisted of sheet steel cylindrical bodies 3514 3914 inches long and 6% inches in diam each. Each contd 66 lbs of Illuminant, a Fuze and a Parachute. The flares shed a bright white fight during 3-2/3 seconds (Ref 1, p 253, Figs 425 426). Detailed description is on pp 103—04 with Fig 78 in Ref 2 Experimental Model 11 Parachute Flares consisted of sheet steel cylindrical bodies 4314 inches long 914 inches in diam, provided with fins. One of the models had conical nose while the other had ogival nose. Each unit contd 68 lbs of Illuminant, a Fuze and a Parachute. The flare... 

Type 91 Hand, Mortar or Rifle Grenade had a cast iron cylindrical body 3% inches long 2 inches in diam. It had 50 serrated segments and contd 65g of powdered TNT. Its delay was 3 secs (Ref 1, p 195 Ref 2, p 225 with Fig 169 on p 224)... 

Type 99 Hand Grenade had a cast-steel cylindrical body 354 by 2 inches with smooth surface, filled with cast PA. Delay 4—5 secs (Ref 2, p... 

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