Investigation of unsteady motion of a sphericalparticle falling in a Newtonian fluid utilizing PPM
Publish place: کنفرانس بین المللی پژوهش در علوم و مهندسی
Publish Year: 1395
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICRSIE01_036
تاریخ نمایه سازی: 25 آذر 1395
Abstract:
In this paper, nonlinear differential equation due to unsteady motion of a sphericalparticle falling in a Newtonian fluid has been considered. The main purpose of this articleis obtaining solution of the considered problem by utilizing a strong semi-analyticalmethod called parameterized perturbation method (PPM), afterward, verify accuracy andefficiency of proposed method base on comparison with achieved solutions of otheranalytical techniques named homotopy analysis method (HAM) and homotopyperturbation method (HPM) and also an accurate numerical solution.As an important result, it is depicted that obtained results by PPM has more accuracy incomparison with those obtained by HPM and HAM. After this verification, the mentionedmethod was applied for real combination of solid–fluid to show the efficiency of PPM forthis type of problems. It has shown that in most cases, PPM is very accurate
Keywords:
Acceleration motion , Drag coefficient , Homotopy analysis method(HAM) , Homotopyperturbation method (HPM) , Parameterized perturbation method (PPM) , Spherical particle
Authors
H. Mirgolbabaee
B.Sc. Student, Department of Mechanical Engineering, Babol Noshirvani University of Technology, P.O. Box484, Babol, Iran
S.T. Ledari
B.Sc. Student, Department of Mechanical Engineering, Babol Noshirvani University of Technology, P.O. Box484, Babol, Iran
M. Sheikholeslami
PhD Student, Department of Mechanical Engineering, Babol Noshirvani University of Technology, P.O. Box484, Babol, Iran
D.D. Ganji
Professor, Department of Mechanical Engineering, Babol Noshirvani University of Technology, P.O. Box484, Babol, Iran
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