• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA)
  • View Item
  • Home
  • Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Simulations of two-dimensional steady isothermal and non-isothermal steady flows with slip for a viscoelastic memory-integral fluid

Article dans une revue avec comité de lecture
Author
CHINE, Adel
238162 Université Hadj Lakhdar Batna 1
ccAMMAR, Amine
211916 Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA]
CLERMONT, Jean-Robert
252741 Laboratoire Rhéologie et Procédés [LRP]

URI
http://hdl.handle.net/10985/16675
DOI
10.1108/ec-02-2014-0039
Date
2015
Journal
Engineering Computations

Abstract

Purpose – The purpose of this paper is to compute flow effects of the transition from adherence-to-slip in two-dimensional flows, for a polymer melt obeying a memory-integral viscoelastic equation, in isothermal and non-isothermal cases. Design/methodology/approach – Temperature dependence is expressed by Arrhenius and William-Landel-Ferry models. A coupling approach is defined. For the dynamic equations, the Stream-Tube Method (STM) is used with finite differences in a mapped rectangular domain of the real domain, where streamlines are parallel and straight. STM avoids particle-tracking problems and allows simple formulae to evaluate stresses resulting from the constitutive equation. For the temperature field, a finite-element method is carried out to solve the energy equation in the real domain. Findings – The approach avoids numerical problems arising with classical formulations and proves to be robust and efficient. Large elasticity levels are attained without convergence and refinement difficulties that may arise close to the “stick-slip” transition section. The method highlights the role of temperature conditions and reveals interesting differences for the ducts considered. Practical implications – The results of the study are of interest for polymer processing where slip at the wall can be encountered, in relation with the physical properties of the materials. Originality/value – The paper presents a simple approach that limits considerably numerical problems coming from stick-slip boundary conditions and avoids particle-tracking. Results are obtained at flow rates encountered in industrial conditions. Keywords Finite elements, Viscoelasticity, Stick-slip problem, Adherence-to-slip, Non-isothermal two-dimensional flows, Memory-integral models

Files in this item

Name:
LAMPA_EC_2015_AMMAR.pdf
Size:
1.686Mb
Format:
PDF
View/Open

Collections

  • Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA)

Related items

Showing items related by title, author, creator and subject.

  • Adaptation and implementation of a process of innovation and design within a SME 
    Communication avec acte
    AMMAR, Adel Amin; NADEAU, Jean-Pierre; ccSCARAVETTI, Dominique (2011)
    A design process is a sequence of design phases, starting with the design requirement and leading to a definition of one or several system architectures. For every design phase, various support tools and resolution methods ...
  • Capitalizing and structuring design knowledge in an SME environment 
    Article dans une revue avec comité de lecture
    AMMAR, Adel Amin; NADEAU, Jean-Pierre; ccSCARAVETTI, Dominique (IJDIR, 2010)
    Small companies can find it difficult to preserve their knowledge, and also to structure a design process. A design methodology is proposed, based on design knowledge reuse and suitable for developing new manufacturing ...
  • Development of a numerical model for the understanding of the chip formation in high-pressure water-jet assisted machining 
    Article dans une revue avec comité de lecture
    ccAYED, Yessine; ROBERT, Camille; ccGERMAIN, Guénaël; ccAMMAR, Amine (Elsevier, 2016)
    The aim of this study is to develop a new numerical cutting model that includes fluid structure interaction and to take into account heat transfer between the water-jet, the workpiece and the chip. This has been achieved ...
  • On the Model Order Reduction of Confined Plasticity 
    Communication avec acte
    NASRI, Mohamed Aziz; ccAMMAR, Amine; ccCHINESTA SORIA, Francisco; ROBERT, Camille; ccEL AREM, Saber; ccMOREL, Franck (Springer, 2016)
    Forming processes usually involve irreversible plastic transformations. The calculation in that case becomes cumbersome when large parts and processes are considered. Recently Model Order Reduction techniques ...
  • Proper Generalized Decomposition (PGD) for numerical calculation of polycrystalline aggregates under cyclic loading 
    Communication sans acte
    NASRI, Mohamed Aziz; ROBERT, Camille; ccMOREL, Franck; ccEL AREM, Saber; ccAMMAR, Amine (2015)
    none

Browse

All SAMCommunities & CollectionsAuthorsIssue DateCenter / InstitutionThis CollectionAuthorsIssue DateCenter / Institution

Newsletter

Latest newsletterPrevious newsletters

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales