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Application of the PTT Model to Axisymmetric Free Surface Flows
(Amer Inst Physics, 2013-01-01)
This work is concerned with numerical simulation of axisymmetric viscoelastic free surface flows using the Phan-Thien-Tanner (PTT) constitutive equation. A finite difference technique for solving the governing equations ...
Desenvolvimento de nanocompósitos de blendas de poli (trimetileno tereftalato)/acrilonitrila butadieno estireno e nanotubos de carbono de paredes múltiplas para embalagens antiestática
(Universidade Federal de São Paulo (UNIFESP), 2020-06-26)
The development of antistatic packaging to control electrostatic discharge in electronic devices is primordial to guarantee its quality and to avoid possible damage and losses. In this work, it was developed materials with ...
An assessment of the PTT model on the impacting drop problem
(2018-09-01)
This work presents a numerical method and simulations of axisymmetric free-surface flows of a polymeric fluid using the Phan–Thien–Tanner (PTT) constitutive relationship. The governing equations are solved by finite ...
Application of the PTT Model to Axisymmetric Free Surface Flows
(Amer Inst Physics, 2014)
Application of the PTT Model to Axisymmetric Free Surface Flows
(Amer Inst Physics, 2014)
Numerical predictions of viscoelastic flows with an algebraic extra-stress model
(2014-01-01)
Numerical simulation of viscoelastic flows using Phan-Thien-Tanner (PTT)[1] differential constitutive equation, and an algebraic extra-stress model (AESM) proposed by G. Mompean [2] are presented in this work. In order to ...
NUMERICAL PREDICTIONS OF VISCOELASTIC FLOWS WITH AN ALGEBRAIC EXTRA-STRESS MODEL
(Int Center Numerical Methods Engineering, 2014-01-01)
Numerical simulation of viscoelastic flows using Phan-Thien-Tanner (PTT) [1] differential constitutive equation, and an algebraic extra-stress model (AESM) proposed by G. Mompean [2] are presented in this work. In order ...
Stresses of PTT, Giesekus, and Oldroyd-B fluids in a Newtonian velocity field near the stick-slip singularity
(Amer Inst Physics, 2017-12-01)
We characterise the stress singularity of the Oldroyd-B, Phan-Thien-Tanner (PTT), and Giesekus viscoelastic models in steady planar stick-slip flows. For both PTT and Giesekus models in the presence of a solvent viscosity, ...
Técnica para dedução do modelo algébrico PTT, aplicações e análises numéricas em escoamentos bidimensionais
(Universidade Estadual Paulista (Unesp), 2014-05-15)
This work presents the theoretical development of the algebraic model PTT (Phan- Thien-Tanner) and its application to the simulation of viscoelastic flows. The implementation and numerical solutions are obtained in the ...
Numerical solution of the PTT constitutive equation for unsteady three-dimensional free surface flows
(ELSEVIER SCIENCE BV, 2010)
This work deals with the development of a numerical technique for simulating three-dimensional viscoelastic free surface flows using the PTT (Phan-Thien-Tanner) nonlinear constitutive equation. In particular, we are ...