Effect of Hole Distance and Hole Number on Bubble Behavior during Gas Injection with Multi-Hole Orifices
Physical model experiments have been performed to clarify the effect of hole distance and hole number of multi-hole orifices on bubble behavior during metal refining process. It is found kA/V firstly decreases and then increases with the hole distance increasing. However, kA/V shows little further increase when hole distance exceeds a critical value. There exists an optimal hole distance for the multi-hole orifice, which is dependent on the gas flow rate, the hole diameter and the hole number in the multi-hole orifice. kA/V firstly increases with the hole number increasing, and then remains unchanged when hole number exceeds a critical value. There also exists an optimal hole number for the multi-hole orifice, which is closely related to the gas flow rate.
Pengcheng Wang, Liqun Ai, Yungang Li, Xiaoming Sang and Jinglong Bu
F. Jiang and G. G. Cheng, "Effect of Hole Distance and Hole Number on Bubble Behavior during Gas Injection with Multi-Hole Orifices", Advanced Materials Research, Vols. 295-297, pp. 1113-1119, 2011