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Keywords: microbubbles
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Proceedings Papers

Proc. ASME. FEDSM2020, Volume 3: Computational Fluid Dynamics; Micro and Nano Fluid Dynamics, V003T05A005, July 13–15, 2020
Paper No: FEDSM2020-20407
...MODELING MICROBUBBLE MICROVESSEL INTERACTION FOR SONOPORATION APPLICATION Aswin Gnanaskandan1, Xiaolong Deng, Chao-Tsung Hsiao and Georges Chahine DYNAFLOW INC., Maryland, MD ABSTRACT Modeling the dynamics of microbubbles inside confined spaces has many potential applications in biomedicine...
Proceedings Papers

Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 2533-2540, July 24–29, 2011
Paper No: AJK2011-10024
... 06 06 2012 Microbubbles are expected to be applied in various subjects such as engineering and medical fields. Thus, on-demand microbubble generation techniques with high efficiently are required. In the present study, the microbubble generator using a venturi tube (converging...
Proceedings Papers

Proc. ASME. FEDSM2007, Volume 1: Symposia, Parts A and B, 257-264, July 30–August 2, 2007
Paper No: FEDSM2007-37056
... 26 03 2009 Turbulent drag reduction realized by hydrogen microbubbles was investigated experimentally. A method of generating microbubbles of 10–60μm diameter by water electrolysis was established. Experiments were performed using a water circulating tunnel. Microbubbles generated...
Proceedings Papers

Proc. ASME. FEDSM2007, Volume 1: Symposia, Parts A and B, 553-560, July 30–August 2, 2007
Paper No: FEDSM2007-37243
... 26 03 2009 Microbubble generation techniques have been proposed in former investigations. Here, we study an effective technique using air bubbly flow into a convergent-divergent nozzle (venturi tube). Pressure change in the diverging section induces bubble breakup. The purpose...
Proceedings Papers

Proc. ASME. FEDSM2005, Volume 1: Symposia, Parts A and B, 1-4, June 19–23, 2005
Paper No: FEDSM2005-77062
... 14 10 2008 With the objective of interfering with the Reynolds stress transfer of momentum to the sublayer, the loss factor is derived for turbulence dissipation by the resistive oscillation of microbubbles in the buffer layer region of a turbulent boundary layer in water...
Proceedings Papers

Proc. ASME. FEDSM2006, Volume 1: Symposia, Parts A and B, 1579-1583, July 17–20, 2006
Paper No: FEDSM2006-98409
... 08 09 2008 Turbulent drag reduction by very small hydrogen microbubbles was investigated experimentally. The method for generating microbubbles of 10–60 μm by water electrolysis was established firstly. Experiments were carried out using a circulating water tunnel, and it was observed...
Proceedings Papers

Proc. ASME. FEDSM2006, Volume 2: Fora, 133-138, July 17–20, 2006
Paper No: FEDSM2006-98354
... 08 09 2008 Drag reduction in water has been a goal of numerous efforts based on different technologies. The gas-based drag reduction technologies include supercavitation, partial cavitation and microbubble ejection. The objective of this study is to clarify the vehicle speed and size...