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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 39
  3. Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 39, Issue 5, May 2017
  4. Effect of the Reynolds number on viscoelastic fluid flows through axisymmetric sudden contraction
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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 39
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 39, Issue 12, December 2017
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 39, Issue 11, November 2017
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 39, Issue 10, October 2017
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 39, Issue 9, September 2017
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 39, Issue 8, August 2017
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 39, Issue 7, July 2017
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 39, Issue 6, June 2017
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 39, Issue 5, May 2017
Simulation of ablation in composites via an interface tracking method
Rapid prototyping of microfluidic chips using laser-cut double-sided tape for electrochemical biosensors
Estimation of surface heat flux in a one-dimensional hyperbolic bio-heat conduction problem with temperature-dependent properties during thermal therapy
Fuel characterization and performance parameters analysis of diesel engine using blends of palm biodiesel and tyre pyrolysis oil
Determination of a fourth-class Assur group position diagram by means of the revision of the linkage condition of a closure link
Assignment of poles to a large-scale structure with state-feedback controllers in orthogonal subspaces
A dynamic calculation method of sliding friction losses for a helical gear pair
A discontinuous Petrov–Galerkin (DPG) formulation for the FEM applied to the Helmholtz equation for high wavenumbers
Optimization for flutter boundaries of cantilevered trapezoidal thick plates
A space–time CESE scheme for shallow water magnetohydrodynamics equations with variable bottom topography
Influence of the vortex design method in the performance characteristics of reversible axial rotors
Numerical study of non-Newtonian fluid flow over an exponentially stretching surface: an optimal HAM validation
Analysis of a priority flow control valve with hydraulic system simulation model
Thermal stratified three-dimensional flow with inclined magnetic field and Joule heating
Experimental study on mechanical and chemical behaviors of bi-layer Fe/Al sheet after laser forming
Analytical prediction of chatter stability of end milling process using three-dimensional cutting force model
A modified cuckoo search algorithm to optimize Wire-EDM process while machining Inconel-690
Weighted principal component analysis combined with Taguchi’s signal-to-noise ratio to the multiobjective optimization of dry end milling process: a comparative study
Methodology for conception of cabins of agricultural machines: informational phase applied to a self-propelled sprayer
Effect of cylinder geometry on the heat transfer enhancement of power-law fluid flow inside a channel
Effect of the Reynolds number on viscoelastic fluid flows through axisymmetric sudden contraction
Mechanical properties of porous polymeric nanocomposites reinforced with mesoporous silica nanoparticles and hydroxyapatite: experimental studies and simulations
Modeling the coupled effects of surface layer and size effect on the static and dynamic instability of narrow nano-bridge structure
Structural optimization considering smallest magnitude eigenvalues: a smooth approximation
A step towards the optimization of composite bonded repair shape using an estimation distribution approach
The anisotropic elasto-plastic analysis using a natural neighbour RPIM version
Impact of tamanu oil-diesel blend on combustion, performance and emissions of diesel engine and its prediction methodology
An experimental study of vertical centreline temperature and velocity profile of buoyant plume in cubical compartment
Comparative studies on emission reduction in thermal barrier coated engine using single blend ratio of various non-edible oils
Bayesian estimate of pre-mixed and diffusive rate of heat release phases in marine diesel engines
Quantitative reliability analysis of repairable systems with closed-loop feedback based on GO methodology
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 39, Issue 4, April 2017
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 39, Issue 3, March 2017
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 39, Issue 2, February 2017
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 39, Issue 1, January 2017
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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Effect of the Reynolds number on viscoelastic fluid flows through axisymmetric sudden contraction

Content Provider SpringerLink
Author Pitz, Diogo B. Negrão, Cezar O. R. Franco, Admilson T.
Copyright Year 2017
Abstract Viscoelastic fluid flows through sudden contractions can be found in several industrial applications, such as polymer extrusion and processing, polymer solution flows, and food and paints processing. However, this kind of flow has not yet been studied within the whole extent of laminar flows. In the current work, a numerical study of viscoelastic fluid flow through an axisymmetric 4:1 sudden contraction is conducted. The approach employs the exponential PTT model, the Reynolds number is varied from 0.0005 to 250, the Weissenberg number from 0.01 to 100 and two values for the extensional parameter ε are used, 0.02 and 0.25. The results show that for Re > 25 and low Weissenberg numbers the Couette correction and the size of the corner vortices are almost independent of the Weissenberg number and of the extensional parameter. For lower values of Re, however, the size of the corner vortices is strongly dependent of We and ε for We ≥ 0.1. The recirculation zones are larger for ε = 0.02 than for ε = 0.25, since an increase of the extensional viscosity hinders the fluid passage through the contraction, creating larger vortices. The Couette correction varies linearly with the Reynolds number within the whole range of the Weissenberg number investigated. It can be concluded that while the rheological properties of viscoelastic fluids affect significantly creeping flow patterns, inertial forces reduce the effect of these properties as the Reynolds number increases.
Starting Page 1709
Ending Page 1720
Page Count 12
File Format PDF
ISSN 16785878
Journal Journal of the Brazilian Society of Mechanical Sciences and Engineering
Volume Number 39
Issue Number 5
e-ISSN 18063691
Language English
Publisher Springer Berlin Heidelberg
Publisher Date 2017-01-30
Publisher Place Berlin, Heidelberg
Access Restriction One Nation One Subscription (ONOS)
Subject Keyword Viscoelastic fluid Numerical solution Couette correction Inertial effects Mechanical Engineering Axisymmetric contraction
Content Type Text
Resource Type Article
Subject Applied Mathematics Industrial and Manufacturing Engineering Automotive Engineering Mechanical Engineering Aerospace Engineering
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