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《Journal of Optoelectronics.Laser》 2008-03
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Laser image measurement of the single bubble formation in non-newtonian fluids

FAN Wen-yuan1,JIANG Shao-kun1,ZHU Chun-ying1,MA You-guang1,LI Huai-zhi2(1.State Key Laboratory of Chemical Engineering,Tianjin University,Tianjin 300072,China;2.Laboratoire des Sciences du Génie Chimique,CNRS-ENSIC-INPL,1 rue Grandville,BP 451,54001 Nancy Cedex,France)  
A laser image measurement system to study bubble formation was specially designed and constructed.The formation behaviors of bubble in various mass concentrations of polyacrylamide(PAM) aqueous solutions at 20 ℃ and under various volume flow rates of N2,inner diameters of orifice,and volumes of gas chamber were measured respectively by the use of a CCD camera and the computer picture collection and treatment technique;And bubble volumes were obtained at different formation times.The effects of physical properties of fluid,orifice diameter,volume of gas chamber and gas flow rate on the detachment volume of bubble were investigated respectively.Experimental results reveal that physical properties of fluid,inner diameter of orifice,and gas flow rate have remarkably positive effects on bubble volume,whereas the volume of gas chamber has less impact.
【Fund】: 国家自然科学基金资助项目(20476073);; 高等学校学科创新引智计划资助项目(GrantNo.B06006)
【CateGory Index】: TN247
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