Interaction Between Two Bubbling Jets

This functional relationship is the same as (3.26). A comparison of (3.33) with (3.26) yields k = 0.58. Consequently, the above assumption about the interaction between two bubbling jets seems reasonable. 

It has been demonstrated that the half-value radius bu of molten Wood s metal flow induced by He gas injection through a single-hole bottom nozzle can be satisfactorily predicted by (3.14) [32] Accordingly, (3.26) may also be applicable in predicting the interaction between two bubbling jets in a molten metal bath. 

Interaction Between Two Bubbling Jets Axial Distribution of Bubble Characteristics... 

The interaction between two air-water bubbling jets generated through two singlehole nozzles in a water bath has been discussed. The two bubbling jets merge into one at a certain distance, //c. from the nozzle exit. This distance is approximated by (3.26) within a scatter of 30% regardless of the gas flow rate and the inner diameter of the nozzle [33]. 

There exist two different types of coherent structures with respect to the radial distance in a He-Wood s metal bubbling jet. The boundary between the two types is located around r/b = 1.0. This radial position nearly corresponds to the outer edge of the bubble dispersion region. Most He bubbles rise in the radial region of r/b < 1.0. Turbulence is produced mainly by inward interaction for r/b < 1.0, and by outward interaction for r/b > 1.0. 

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