Nilsson, Robbins, Dalgarn, Berliner, Carson & Wurst
Mixing apparatus using a noncircular jet of small aspect ratio
 An apparatus for mixing fluids includes at least one noncircular orifice having unequal major and minor axis dimensions, with the major axis dimension being less than approximately 5 times the minor axis dimension. A first fluid is emitted from the orifice as a jet for mixing with another fluid in a region downstream of the orifice. The mixing region extends downstream a distance at least equal to the minor axis dimension, and then either terminates in a wall in the path of the jet or continues downstream to a total distance of at least approximately 3 times the minor axis dimension. The mixing region has a lateral width of at least 2(a+0.4x) in a direction parallel to the major axis and a lateral width of at least 2(b+0.4x) in a direction parallel to the minor axis, where a and b are one-half the major and minor axis dimensions, respectively, and x is the distance downstream of the orifice. 
University of Southern California
B Y Y Y B
B01F Y10T Y10T Y10T B01F
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Ephraim Chih-Ming
Gutmark Ho