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  1. Journal of the Brazilian Society of Mechanical Sciences and Engineering
  2. Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 40
  3. Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 40, Issue 3, March 2018
  4. Analytical study on motion and shape of creeping Boger drops falling through viscoelastic media
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Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 40
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 40, Issue 3, March 2018
Investigation of injection molding parameters on the uniformity of porous array of polymer microfluidic chip
Application of improved Fourier’s and Fick’s laws in a non-Newtonian fluid with temperature-dependent thermal conductivity
HPHT sintering of binderless Si$_{3}$N$_{4}$: structure, microstructure, mechanical properties and machining behavior
Dynamic contact and slip characteristics of bent hoisting rope in coal mine
Preliminary analysis on the preload influence on the behavior of offset half gas bearings
The effect of hypokyphosis on the biomechanical behavior of the adolescent thoracic spine
Analysis of the flow patterns on the fore-body section of a sounding vehicle in the transonic regime
RANS study of Strouhal number effects on the stability derivatives of an autonomous underwater vehicle
Numerical investigation of hot ultrasonic assisted turning of aviation alloys
A new method of static output-feedback H $_{∞}$ controller design for 5 DOF vehicle active suspension system
Forces and coefficient of friction during cylindrical three roller bending
3D analysis of the combined effects of thermal buoyancy and viscous dissipation on the mixed convection of Bingham plastic fluid in a rectangular channel
Optimization of size and form characteristics using multi-objective grey analysis in abrasive water jet drilling of Inconel 617
Grey relational analysis-based genetic algorithm optimization of electrical discharge drilling of Nimonic-90 superalloy
Theoretical and discrete element simulation studies of aircraft landing impact
Value proposition analysis applied to military training airplane design concept
Radiative and magnetohydrodynamics flow of third-grade viscoelastic fluid past an isothermal inverted cone in the presence of heat generation/absorption
Analytical study on motion and shape of creeping Boger drops falling through viscoelastic media
Convection heat transfer inside a lid-driven cavity filled with a shear-thinning Herschel–Bulkley fluid
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 40, Issue 2, February 2018
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 40, Issue 1, January 2018
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 39
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 38
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 37
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 36
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 35

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Analytical study on motion and shape of creeping Boger drops falling through viscoelastic media

Content Provider SpringerLink
Author Davoodi, M. Norouzi, M.
Copyright Year 2018
Abstract In the present study, an analytical solution based on a double perturbation method is obtained to simulate the creeping motion of a Boger drop descending in an immiscible viscoelastic quiescent medium. The perturbation parameters are considered to be the Deborah number defined based on the relaxation times of interior and exterior media and the Capillary number. The Oldroyd-B model is implemented as a constitutive equation for both interior and exterior phases. The analytical solutions are obtained up to second order of perturbation expansion for both phases. The motion of the droplet in the surrounding medium is considered to be creeping. Effects of different parameters including, Deborah numbers, viscosity ratios, elasto-capillary number, and viscosity ratio between the drop and external flows are investigated on the shape, motion, and stream function in detail. In contrast to the generally spherical shape of creeping drops in Newtonian regimes, it is shown that the effect of elasticity in a non-Newtonian scenario can feature prolate or oblate shapes. It is shown that an increment in elastic properties of interior fluid is followed by decrement in the terminal velocity of the droplet, while an increment in elasticity of exterior fluid has a contrary effect and increases the terminal velocity. The results have shown suitable agreements with previously reported experimental results.
Starting Page 1
Ending Page 22
Page Count 22
File Format PDF
ISSN 16785878
Journal Journal of the Brazilian Society of Mechanical Sciences and Engineering
Volume Number 40
Issue Number 3
e-ISSN 18063691
Language English
Publisher Springer Berlin Heidelberg
Publisher Date 2018-02-08
Publisher Place Berlin, Heidelberg
Access Restriction One Nation One Subscription (ONOS)
Subject Keyword Viscoelastic drop Perturbation method Creeping motion Oldroyd-B model Mechanical Engineering Deborah number Elasto-capillary number Viscoelastic media
Content Type Text
Resource Type Article
Subject Applied Mathematics Industrial and Manufacturing Engineering Automotive Engineering Mechanical Engineering Aerospace Engineering
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