scholarly journals Numerical simulation of shear-thinning droplet impact on surfaces with different wettability

2020 ◽  
Vol 69 (6) ◽  
pp. 064702
Author(s):  
Xue-Feng Shen ◽  
Yu Cao ◽  
Jun-Feng Wang ◽  
Hai-Long Liu
Keyword(s):  
Numerical Simulation ◽  
Shear Thinning ◽  
Droplet Impact

Improved Calculation of Wellblock Pressures for Numerical Simulation of Non-Newtonian Polymer Injection

SPE Journal ◽  
2021 ◽  
pp. 1-12
Author(s):  
Irfan Tai ◽  
Marie Ann Giddins ◽  
Ann Muggeridge
Keyword(s):  
Numerical Simulation ◽  
Oil Recovery ◽  
Polymer Solutions ◽  
Shear Thinning ◽  
Injection Well ◽  
Solution Viscosity ◽  
Grid Refinement ◽  
Equivalent Radius ◽  
Local Grid Refinement ◽  
Local Grid

Summary The viability of any enhanced-oil-recovery project depends on the ability to inject the displacing fluid at an economic rate. This is typically evaluated using finite-volume numerical simulation. These simulators calculate injectivity using the Peaceman method (Peaceman 1978), which assumes that flow is Newtonian. Most polymer solutions exhibit some degree of non-Newtonian behavior resulting in a changing polymer viscosity with distance from the injection well. For shear-thinning polymer solutions, conventional simulations can overpredict injection-well bottomhole pressure (BHP) by several hundred psi, unless a computationally costly local grid refinement is used in the near-wellboreregion. We show theoretically and numerically that the Peaceman pressure-equivalent radius, based on Darcy flow, is not correct when fluids are shear thinning, and derive an analytical expression for calculating the correct radius. The expression does not depend on any particular functional relationship between polymer-solution viscosity and velocity. We test it using the relationship described by the Meter equation (Meter and Bird 1964) and the Cannella et al. (1988) correlation. Numerical tests indicate that the solution provides a significant improvement in the accuracy of BHP calculations for conventional numerical simulation, reducing or removing the need for expensive local grid refinement around the well when simulating the injection of fluids with shear-thinningnon-Newtonianrheology.

scholarly journals Numerical simulation of water droplet impact test on aircraft wing structure

2019 ◽  
Vol 1276 ◽  
pp. 012034 ◽  
Author(s):  
S. Manigandan ◽  
Dineshkumar ◽  
Muthiaya Ramanathan ◽  
P. Gunasekar ◽  
J. Devipriya ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Water Droplet ◽  
Impact Test ◽  
Droplet Impact ◽  
Aircraft Wing ◽  
Wing Structure

Numerical Simulation of Sterilization Processes for Shear‐Thinning Food in Taylor‐Couette Flow Systems

2019 ◽  
Vol 42 (4) ◽  
pp. 859-866 ◽  
Author(s):  
Hayato Masuda ◽  
Robert Hubacz ◽  
Makoto Shimoyamada ◽  
Naoto Ohmura
Keyword(s):  
Numerical Simulation ◽  
Couette Flow ◽  
Shear Thinning ◽  
Flow Systems ◽  
Taylor Couette ◽  
Taylor Couette Flow

Numerical simulation of droplet impact on solid or liquid surface

2020 ◽  
Vol 2020.28 (0) ◽  
pp. 111
Author(s):  
Masatoshi WATANABE ◽  
Hayato TERAISHI ◽  
Taito KOEDA ◽  
Yoshiaki HANEDA
Keyword(s):  
Numerical Simulation ◽  
Liquid Surface ◽  
Droplet Impact
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