Free slugging

As pointed out before, further work is underway to adapt the present model to conditions of free slugging, with coalescence. 

Winchester introduced the 2 Vi-indi saboted, lead-free slug two years earlier than its roll-out of the 3-inch version. With the same BC (0.189), bullet dynamics at the muzzle for the two slugs is similar 2 %-inch = 2000 fps with 2665 ft lb of energy and 3-inch = 2100 fps with 2937 ft lb. 

Slugs of lithium, coated with paraffin oil, are hammered into thin foil. They are washed free of oil with dry ether and cut by scissors into slips which are allowed to fall directly into the ether in the reaction flask. 

In commercial use are a wide variety of machines which transfer fixed volumes of compound to clamped moulds, by the operation of a ram in a cylinder fed with pre-heated slugs. These machines are capable of high speed semi-automatic cycling and are a great advance over the use of loose transfer moulds in conventional presses. The components which are produced are to a large degree flash-free, it only being necessary, in the majority of cases, to remove the injection feed and runner system. 

The bubble size may also be estimated on the basis of the correlation of Darton et al. (1977) under conditions of free bubbling beds without slugging and maximum stable bubble size as... 

Step 3. The Reynolds number Re is calculated in this step. Dukler developed experimental data determining liquid holdup in two-phase flow systems. Re values above 200,000 are free of liquid slugs and holdup. If Re is greater than 200,000, then the flow is in the froth zone, or it is simply homogeneous flow as a mixture. For homogeneous flow, the average density of the two-phase flow fluid mixture is ... 

---