Study and Application of Ultra-temperature Polymer Fluid for Enhanced Stimulation in HP/HT Reservoirs

2015 ◽  
Author(s):  
Bo Cai ◽  
Wen Zhai ◽  
Liwei Wang ◽  
xiaohui Qiu ◽  
Chunming He ◽  
...  
Keyword(s):  
Polymer Fluid

Vortex Stationary Karman Structures in Flows of a Rotating Incompressible Polymer Fluid

2020 ◽  
Vol 55 (7) ◽  
pp. 925-935
Author(s):  
A. M. Blokhin ◽  
R. E. Semenko
Keyword(s):  
Polymer Fluid

scholarly journals An Incompressible Polymer Fluid Interacting with a Koiter Shell

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Dominic Breit ◽  
Prince Romeo Mensah
Keyword(s):  
Moving Boundary ◽  
Classical Model ◽  
Elastic Shell ◽  
Planck Equation ◽  
Navier Stokes ◽  
Flexible Shell ◽  
Navier Stokes Equation ◽  
Shell System ◽  
Forward Equation ◽  
Polymer Fluid

AbstractWe study a mutually coupled mesoscopic-macroscopic-shell system of equations modeling a dilute incompressible polymer fluid which is evolving and interacting with a flexible shell of Koiter type. The polymer constitutes a solvent-solute mixture where the solvent is modelled on the macroscopic scale by the incompressible Navier–Stokes equation and the solute is modelled on the mesoscopic scale by a Fokker–Planck equation (Kolmogorov forward equation) for the probability density function of the bead-spring polymer chain configuration. This mixture interacts with a nonlinear elastic shell which serves as a moving boundary of the physical spatial domain of the polymer fluid. We use the classical model by Koiter to describe the shell movement which yields a fully nonlinear fourth order hyperbolic equation. Our main result is the existence of a weak solution to the underlying system which exists until the Koiter energy degenerates or the flexible shell approaches a self-intersection.

Sound dispersion in a relaxing polymer fluid with bubbles

1985 ◽  
Vol 48 (1) ◽  
pp. 50-54 ◽  
Author(s):  
Z. P. Shul'man ◽  
S. P. Levitskii
Keyword(s):  
Polymer Fluid ◽  
Sound Dispersion

An Experimental Study of the Effect of Drag Reducing Additive on the Structure of Turbulence in Concentric Annular Pipe Flow Using Particle Image Velocimetry Technique

2013 ◽  
Author(s):  
Fabio Ernesto Rodriguez Corredor ◽  
Majid Bizhani ◽  
Ergun Kuru
Keyword(s):  
Particle Image Velocimetry ◽  
Fluid Flow ◽  
Pipe Flow ◽  
Particle Image ◽  
Polymer Concentration ◽  
Velocity Fluctuations ◽  
Polymer Fluid ◽  
Image Velocimetry ◽  
Drag Reducing Additive ◽  
Annular Pipe

The effect of drag reducing additive on the structure of turbulence in concentric annular pipe flow was investigated using Particle Image Velocimetry (PIV) technique. Experiments were conducted using a 9m long horizontal flow loop with concentric annular geometry (inner to outer pipe radius ratio = 0.4). The drag reducing additive was a commercially available partially hydrolyzed polyacrylamide (PHPA). The experiments were conducted using 0.1% V/V polymer concentration, giving a drag reduction of 26% at a solvent Reynolds number equal to 56400. Near wall local fluctuating velocity values were determined by analysing the PIV data. The root mean square (RMS) values of radial velocity fluctuations showed a significant decrease with the use of drag reducing additive. The RMS values of axial velocity fluctuations near the wall (Y+<10) were similar for both water and polymer fluid flow; though, higher peaks were obtained during the polymer fluid flow. As compared to water flow, a strong reduction in vorticity was observed during polymer fluid flow. The degree of vorticity reduction on the inner wall was higher than that of the outer wall. Results of the viscous dissipation and the shear production terms in the kinetic energy budget showed that less energy was produced and dissipated by the route of turbulence when using polymer fluid.

Model polymer fluid systems

1985 ◽  
Vol 57 (7) ◽  
pp. 921-930 ◽  
Author(s):  
D. V. Boger
Keyword(s):  
Polymer Fluid ◽  
Fluid Systems
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