DEVELOPMENT OF NEW EMPIRICAL EQUATIONS FOR ESTIMATION OF DRAG COEFFICIENT, SHAPE DEFORMATION, AND RISING VELOCITY OF GAS BUBBLES OR LIQUID DROPS
期刊名称： Chemical Engineering Communications
作者： Gudret Kelbaliyev,Kadim Ceylan
作者机构： Department of Chemical Engineering , Inönü University , Malatya ,
Turkey
年份： 2007年
期号： 第12期
关键词： Bubble;Drag;Drop;Rising velocity;Shape deformation
摘要：Some new correlations are derived to estimate the drag coefficient, the shape deformation, and the rising velocity of particles moving in an infinite liquid medium. The correlations are derived in terms
of the dimensionless groups such as Reynolds number (Re), Morton number (Mo), and Weber number (We). The derivations are bad on the experimental data or some other correlations given in the literature. A single statement is propod to estimate the drag coefficient for the spherical solid particles that may be applicable in the range of 0.5 < Re < 105. Similarly, some other equations are also derived to estimate the drag coefficient, the shape deformation, or the rising velocity for gas bubbles or liquid drops. The drag equation is applicable in the range of 0.5 < Re < 100 and 9 × 107 ≤ Mo ≤ 7; the shape deformation
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