Numerical methods for viscoelastic fluid flows
Complex fluids exist in nature and are continually engineered for specific applications
involving the addition of macromolecules to a solvent, among other means. This imparts …
involving the addition of macromolecules to a solvent, among other means. This imparts …
A comparison of stabilisation approaches for finite-volume simulation of viscoelastic fluid flow
In this work we compare different stabilisation approaches currently used in the simulation of
viscoelastic fluid flow. These approaches are: the both-sides diffusion, the positive …
viscoelastic fluid flow. These approaches are: the both-sides diffusion, the positive …
Vortex behavior of the Oldroyd-B fluid in the 4-1 planar contraction simulated with the streamfunction–log-conformation formulation
In this paper, we present numerical solutions of the Oldroyd-B fluid flowing through a 4: 1
planar contraction, for Weissenberg numbers (Wi) up to 20. The incompressible viscoelastic …
planar contraction, for Weissenberg numbers (Wi) up to 20. The incompressible viscoelastic …
Effect of contraction ratio upon viscoelastic flow in contractions: The axisymmetric case
A comprehensive numerical study of the effects of the contraction ratio upon viscoelastic flow
through axisymmetric contractions was carried out. Six contraction ratios were examined …
through axisymmetric contractions was carried out. Six contraction ratios were examined …
Finite volume simulation of viscoelastic laminar flow in a lid-driven cavity
K Yapici, B Karasozen, Y Uludag - Journal of Non-Newtonian Fluid …, 2009 - Elsevier
A finite volume technique is presented for the numerical solution of steady laminar flow of
Oldroyd-B fluid in a lid-driven square cavity over a wide range of Reynolds and …
Oldroyd-B fluid in a lid-driven square cavity over a wide range of Reynolds and …
High-resolution finite element simulation of 4: 1 planar contraction flow of viscoelastic fluid
In this work, we present high-resolution solutions for viscoelastic 4: 1 planar contraction flow
problems using a transient finite element method based on the fractional step method (FSM) …
problems using a transient finite element method based on the fractional step method (FSM) …
Die-swell, splashing drop and a numerical technique for solving the Oldroyd B model for axisymmetric free surface flows
This work deals with the development of a numerical method for simulating viscoelastic
axisymmetric free surface flow of an Oldroyd B fluid. A novel formulation is developed for the …
axisymmetric free surface flow of an Oldroyd B fluid. A novel formulation is developed for the …
Planar sudden symmetric expansion flows and bifurcation phenomena of purely viscous shear-thinning fluids
P Ternik - Journal of non-newtonian fluid mechanics, 2009 - Elsevier
The goal of a present study is to investigate the effects of the generalized Newtonian fluids
on the threshold of the transition from flow symmetry to its asymmetry for the flow through a …
on the threshold of the transition from flow symmetry to its asymmetry for the flow through a …
Structural mechanics of flexible baffle used in enhancing heat transfer of power law fluids in channel-trapezoidal cavity
Recent studies have proven the reliability of using flexible baffles in enhancing the rate of
energy exchange in non-Newtonian fluids. The current study focuses on the deflection and …
energy exchange in non-Newtonian fluids. The current study focuses on the deflection and …
Numerical simulation of viscoelastic fluid flows using a robust FVM framework on triangular grid
This paper presents a robust finite volume method (FVM) framework on unstructured
triangular grid for simulating the viscoelastic flow of Oldroyd-B fluid. In order to enhance the …
triangular grid for simulating the viscoelastic flow of Oldroyd-B fluid. In order to enhance the …