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Keywords: Surfactant
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Proceedings Papers

Proc. ASME. FEDSM2007, Volume 2: Fora, Parts A and B, 285-290, July 30–August 2, 2007
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2007-37490
... 26 03 2009 Dissolution of single carbon dioxide (CO 2 ) bubbles in a vertical pipe of 25 mm in diameter are measured to examine the effects of the ratio λ of sphere–volume equivalent bubble diameter d to pipe diameter D , liquid Reynolds number Re L and surfactants on mass...
Proceedings Papers

Proc. ASME. FEDSM2007, Volume 1: Symposia, Parts A and B, 291-298, July 30–August 2, 2007
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2007-37242
.... Keywords: Heat Transfer, Drag Reduction, Coherent Fine Scale Eddy, Surfactant INTRODUCTION It is well known that the drag of turbulent pipe flow can be reduced by adding small amounts of surfactant or polymers. This phenomenon is the so-called Toms effect (Toms, 1949). The heat transfer coefficients...