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Self oscillation phenomena of turbulent jets in a channel
Author(s) -
Murai Kazuhiro,
Kawashima Yosuke,
Nakanishi Shigeyasu,
Taga Masao
Publication year - 1989
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450670606
Subject(s) - strouhal number , oscillation (cell signaling) , mechanics , turbulence , mixing (physics) , physics , jet (fluid) , enclosure , channel (broadcasting) , acoustics , control theory (sociology) , engineering , chemistry , reynolds number , computer science , electrical engineering , biochemistry , control (management) , artificial intelligence , quantum mechanics
A new method based on the Coanda effect for self oscillation of a circular jet bounded by rectangular enclosure is suggested. The experiments in both air and water reveal regions of stable oscillation wherein relationships are obtained between the Strouhal number and the shape factor of the channel. This oscillation method can also be used to mix different liquids in a vessel. For such applications, an improvement of mixing by oscillation is shown by means of a residual concentration diagram for a salt solution.