کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
236485 465672 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Transient vertically motion of a soluble particle in a Newtonian fluid media
ترجمه فارسی عنوان
حرکت عمودی حرکتی یک ذره محلول در یک رسانه مایع نیوتنی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• The equation of motion for a soluble particle in Newtonian media is presented.
• DTM-Padé is introduced as an efficient method for solving this problem.
• Numerical and analytical results are compared.
• Positions and variation of particle diameter versus time are depicted.

Unsteady settling behavior of a soluble spherical particle falling in a Newtonian fluid media is investigated using a drag coefficient of the form given by Ferreira et al. (Chem. Eng. Commun. 1998). It is considered that the mass of the particle reduces due to its solubility in the fluid, and consequently diameter of the particle will be reduced by a linear function. In a current study, the equation of the motion for described variable-mass particle is introduced for the first time and is solved by Padé approximation of Differential Transformation Method (DTM-Padé) and numerical Runge–Kutta method. Also the influence of solubility parameter on velocity profile is discussed and particle's positions are depicted graphically in each 1 s time step.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Powder Technology - Volume 253, February 2014, Pages 481–485
نویسندگان
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