..., and kinematics viscoelasticity parameter on the stability of the system are investigated. Regimes of oscillatory and nonoscillatory convection for various parameters are derived and discussed in detail. The sufficient conditions for the nonexistence of oscillatory convection have also been obtained...

... oscillatory shear at arbitrary frequency forcing and strain amplitude is identified. 12 02 2010 09 09 2011 05 10 2011 05 10 2011 drops microemulsions rheology shear flow two-phase flow viscoelasticity viscosity emulsion viscous drop rheology shear flows...

... models, well defined in vitro experiments are of great importance. The objective of this paper is to present a frequency domain analytical model based on the one-dimensional wave propagation theory and validate it against experimental data obtained for aortic analogs. The elastic and viscoelastic...

... using large eddy simulation technique. The particle motion is predicted by a Lagrangian method. Particles are assumed to behave as viscoelastic solids during interactions with their neighboring particles. Interparticle normal and tangential contact forces are calculated using a generalized Hertzian...

... viscoelasticity extrusion blow moulding dies (machine tools) finite element analysis plastics industry production engineering computing blow molding parison extrusion finite element simulation neural network model Blow molding is a major polymer processing technique for manufacturing a wide...

...Pardeep Kumar; Roshan Lal The Rayleigh-Taylor instability of a Newtonian viscous fluid overlying Walters B ′ viscoelastic fluid is considered. For the stable configuration, the system is found to be stable or unstable under certain conditions. However, the system is found to be unstable...

... a deformation of the free surface with a dip at the center. The dip was largest for the water case and decreased with increasing surfactant concentration. The value of the dip was related to determining the solution viscoelasticity for the onset of drag reduction. 25 06 2004 22 08 2005 non...

... the surfactant solution has viscoelasticity, interesting flow characteristics are obtained. The decay of swirl, the vortex type and the turbulence intensity are discussed, compared with the swirling flow of the water. As the results, it is concluded that the change from Rankin’s combined vortex to the forced...

... Laminar Energy Dissipation Viscoelasticity The main motivation for the attempts of improving models of unsteady-state friction in pressurized pipe systems is the need for simulating properly the very large decay and rounding of pressure peaks after the end of a complete closure manoeuvre...

...Dennis A. Siginer 03 05 2004 rheology fluid mechanics non-Newtonian flow bubbles viscosity viscoelasticity polymer solutions liquid crystals jets pipe flow metallurgy convection crystal growth from solution transfer moulding magnetic fluids solidification...

... larger resistance to extensional flow than their Newtonian counterparts and, insofar as the multigrade oils studied here are made viscoelastic by polymer additives, and possess significant levels of resistance to extension, the results provide evidence in support of a mitigating effect of viscoelasticity...

.... Dhaubhadel. 03 May 1999 09 May 2000 polymer solutions pressure measurement viscoelasticity viscosity manometers In industrial polymer processing systems such as extrusion, injection molding and fiber spinning, monitoring the pressure during the process is of great importance...

...N. A. Patankar, Research Associate,; H. H. Hu, Associate Professor, Particles sedimenting in a viscoelastic fluid form chains. It has been observed in experiments that, sometimes, the last particle in the chain gets detached. In this paper, we investigate this phenomenon. It is known that a long...