scholarly journals Rotation of a sphere in a viscoelastic liquid subjected to shear flow. Part II. Experimental results

2009 ◽  
Vol 53 (2) ◽  
pp. 459-480 ◽  
Author(s):  
Frank Snijkers ◽  
Gaetano D’Avino ◽  
Pier Luca Maffettone ◽  
Francesco Greco ◽  
Martien Hulsen ◽  
...  
Keyword(s):  
Shear Flow ◽  
Viscoelastic Liquid ◽  
Experimental Results ◽  
Flow Part

scholarly journals Rotation of a sphere in a viscoelastic liquid subjected to shear flow. Part I: Simulation results

2008 ◽  
Vol 52 (6) ◽  
pp. 1331-1346 ◽  
Author(s):  
Gaetano D’Avino ◽  
Martien A. Hulsen ◽  
Frank Snijkers ◽  
Jan Vermant ◽  
Francesco Greco ◽  
...  
Keyword(s):  
Shear Flow ◽  
Viscoelastic Liquid ◽  
Flow Part ◽  
Simulation Results

Shear Piezoresistive Response of a Graphite/Silicone Suspension

2006 ◽  
Author(s):  
John Edmiston ◽  
Yuri M. Shkel
Keyword(s):  
Shear Flow ◽  
Experimental Approach ◽  
Second Harmonic ◽  
Viscoelastic Liquid ◽  
Rheological Characteristics ◽  
Piezoresistive Effect ◽  
Material Parameters ◽  
Oscillatory Shear Flow ◽  
Measurement Results ◽  
Liquid Suspensions

A shear piezoresistive effect has been observed for micrographite particles suspended in uncured silicone elastomer. A phenomenological formulation of piezoresistivity is presented and an experimental approach is discussed within this paper. The experimental objective is to extract two material parameters, fully describing the piezoresistance effect in deformed isotropic materials. A rheometer in the cone-and-plate configuration provides well-defined oscillatory shear flow of the suspension; it also measures rheological characteristics of the suspension. The piezoresistive response is probed using interdigitated electrodes, which are attached to the rheometer plate. The electrodes are arranged in parallel-to-flow and perpendicular-to-flow orientations. The signal acquired from two such orthogonal electrode pairs can be combined in a way to exclude any contribution of volumetric deformations to the piezoresistance signal. The experimental results indicate a second harmonic relationship between the mechanical oscillation and the resistive response. These two-probe measurement results represent the first observations of a non-volumetric deformation contribution to the piezoresistivity of viscoelastic liquid suspensions.

Molecular Mixing and Flowfield Measurements in a Recirculating Shear Flow. Part I: Subsonic Flow

2009 ◽  
Vol 83 (2) ◽  
pp. 269-292 ◽  
Author(s):  
Jeffrey M. Bergthorson ◽  
Michael B. Johnson ◽  
Aristides M. Bonanos ◽  
Michael Slessor ◽  
Wei-Jen Su ◽  
...  
Keyword(s):  
Shear Flow ◽  
Subsonic Flow ◽  
Molecular Mixing ◽  
Flow Part

The Development of the Reynolds Stress Tensor in a Turbulent Shear Flow

1970 ◽  
Vol 92 (4) ◽  
pp. 836-842
Author(s):  
S. J. Shamroth ◽  
H. G. Elrod
Keyword(s):  
Shear Flow ◽  
Stress Tensor ◽  
Linear Model ◽  
Reynolds Stress ◽  
Experimental Results ◽  
Turbulent Shear ◽  
Turbulent Shear Flow ◽  
Reynolds Stress Tensor ◽  
Theoretical Predictions

The development of the normalized Reynolds stress tensor, uiuj/q2, in the region upstream of a fully developed, turbulent shear flow is investigated. An inviscid, linear model is used to predict values of the normalized Reynolds stress tensor as a function of position. The theoretical predictions are then compared with experimental results.

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