Contraction flow is one of important geometries in fluid flow both in Newtonian and non-Newtonian fluids. In this study, flow of a viscoelastic fluid through a planar 4:1 contraction with rounded corners was investigated. Six different rounding ratios (RR=0, 0.125, 0.25, 0.375, 0.438, 0.475, 0.488) was examined using the linear PTT constitutive equation at creeping flow and isothermal condition. Then the resulting PDE set including continuity, momentum, and PTT constitutive equations were implemented to the OpenFOAM software. The results clearly show vortex deterioration with increasing rounding diameter, so that when rounding corner exceeds a critical value, the vortex disappears completely. This phenomenon was also observed at different u...
A finite element simulation of the flow in a channel with an abrupt contraction is presented. The ef...
The creeping flow of a dilute (0.025 wt%) monodisperse polystyrene/polystyrene Boger fluid through a...
The flow of a Newtonian fluid and a Boger fluid through sudden square–square contractions was invest...
A numerical study of the creeping flow of a PTT fluid through planar sudden contractions was carrie...
In this work we present numerical results obtained with a finite volume method for the creeping flow...
Abstract. Visualizations of the 3-D flow in a 4:1 sudden square-square contraction for a viscoelasti...
The present paper is devoted to the mechanism of vortex enhancement and the occurrence of lip vortic...
One of the relevant benchmark problems in pressure-driven flows, that of flow through an axisymmetri...
Planar contraction flow was used as a model system to investigate two topics in vis-coelastic fluid ...
An approximate analytical solution is presented to predict the flow, vortex and pressure drop behavi...
The inertialess three-dimensional (3D) flow of viscoelastic shear-thinning fluids in a 4:1 sudden sq...
Understanding the behavior of viscoelastic (VE) fluids in confined geometries is crucial for applica...
A numerical method is used to study the influence of inertiaand elongational properties on the vorte...
International audienceWe studied the displacement of the interface between a viscoelastic fluid push...
In this paper, the differences in the development of vortex structure with increasing elasticity bet...
A finite element simulation of the flow in a channel with an abrupt contraction is presented. The ef...
The creeping flow of a dilute (0.025 wt%) monodisperse polystyrene/polystyrene Boger fluid through a...
The flow of a Newtonian fluid and a Boger fluid through sudden square–square contractions was invest...
A numerical study of the creeping flow of a PTT fluid through planar sudden contractions was carrie...
In this work we present numerical results obtained with a finite volume method for the creeping flow...
Abstract. Visualizations of the 3-D flow in a 4:1 sudden square-square contraction for a viscoelasti...
The present paper is devoted to the mechanism of vortex enhancement and the occurrence of lip vortic...
One of the relevant benchmark problems in pressure-driven flows, that of flow through an axisymmetri...
Planar contraction flow was used as a model system to investigate two topics in vis-coelastic fluid ...
An approximate analytical solution is presented to predict the flow, vortex and pressure drop behavi...
The inertialess three-dimensional (3D) flow of viscoelastic shear-thinning fluids in a 4:1 sudden sq...
Understanding the behavior of viscoelastic (VE) fluids in confined geometries is crucial for applica...
A numerical method is used to study the influence of inertiaand elongational properties on the vorte...
International audienceWe studied the displacement of the interface between a viscoelastic fluid push...
In this paper, the differences in the development of vortex structure with increasing elasticity bet...
A finite element simulation of the flow in a channel with an abrupt contraction is presented. The ef...
The creeping flow of a dilute (0.025 wt%) monodisperse polystyrene/polystyrene Boger fluid through a...
The flow of a Newtonian fluid and a Boger fluid through sudden square–square contractions was invest...