Drag reduction of aqueous suspensions of fine solid matter in pipe flows

AIChE Journal ◽  
2021 ◽  
Author(s):  
Keizo Watanabe ◽  
Satoshi Ogata
Keyword(s):  
Drag Reduction ◽  
Solid Matter ◽  
Pipe Flows ◽  
Aqueous Suspensions

On the link between experimentally‐measured turbulence quantities and polymer‐induced drag reduction in pipe flows

AIChE Journal ◽  
2019 ◽  
Vol 65 (9) ◽  
Author(s):  
Victor Voulgaropoulos ◽  
Ivan Zadrazil ◽  
Niccolò Le Brun ◽  
Alexander Bismarck ◽  
Christos N. Markides
Keyword(s):  
Drag Reduction ◽  
Pipe Flows ◽  
Induced Drag

DRAG REDUCTION IN TURBULENT PIPE FLOWS WITH POLYMER-POLYMER MIXTURES

2015 ◽  
Author(s):  
Gustavo Alonso Barrientos Sandoval ◽  
Edson José Soares ◽  
Fabricio Thomaz
Keyword(s):  
Drag Reduction ◽  
Polymer Mixtures ◽  
Pipe Flows

An experimental study of the drag reduction pipe flows with the addition of natural macromolecules

2019 ◽  
Vol 2019 (0) ◽  
pp. OS10-13
Author(s):  
Shinichirou YANASE ◽  
Eisuke YAMANE ◽  
Toshinori KOUCHI ◽  
Yasunori NAGATA ◽  
Kazunori YASUDA
Keyword(s):  
Experimental Study ◽  
Drag Reduction ◽  
Pipe Flows

DRAG REDUCTION BY A MIXTURE OF POLYMERS AND FIBERS EXTRACTED FROM OKRA PODS IN TURBULENT PIPE FLOWS

2016 ◽  
Author(s):  
Eduardo Coelho ◽  
Kelvin Barbosa ◽  
Edson Soares ◽  
Renato Siqueira
Keyword(s):  
Drag Reduction ◽  
Pipe Flows

CFD Modelling of Drag Reduction Effects in Pipe Flows

2003 ◽  
Author(s):  
Jukka Koskinen ◽  
Mikko Manninen ◽  
Timo Pattikangas ◽  
Villo Alopaeus ◽  
Kari I. Keskinen ◽  
...  
Keyword(s):  
Drag Reduction ◽  
Cfd Modelling ◽  
Pipe Flows

Simulating drag reduction phenomenon in turbulent pipe flows

2008 ◽  
Vol 35 (8) ◽  
pp. 609-613 ◽  
Author(s):  
M. Allahdadi Mehrabadi ◽  
K. Sadeghy
Keyword(s):  
Drag Reduction ◽  
Pipe Flows

Degradation effects of dilute polymer solutions on turbulent drag reduction in pipe flows

1995 ◽  
Vol 55 (1) ◽  
pp. 63-82 ◽  
Author(s):  
J. M. J. Toonder ◽  
A. A. Draad ◽  
G. D. C. Kuiken ◽  
F. T. M. Nieuwstadt
Keyword(s):  
Drag Reduction ◽  
Polymer Solutions ◽  
Turbulent Drag Reduction ◽  
Pipe Flows ◽  
Dilute Polymer Solutions ◽  
Turbulent Drag

A Turbulent Energy Model for Flows With Drag Reduction

1975 ◽  
Vol 97 (2) ◽  
pp. 234-241 ◽  
Author(s):  
S. Hassid ◽  
M. Poreh
Keyword(s):  
Drag Reduction ◽  
Turbulent Energy ◽  
Energy Model ◽  
Linear Polymers ◽  
Mean Velocity ◽  
Pipe Flows ◽  
Newtonian Flows ◽  
Damping Parameter ◽  
Variable Damping ◽  
Good Agreement

A simple turbulent energy model, based on an improved version of Wolfshtein’s model for Newtonian flows, with a variable damping parameter, is used to describe the effect of linear polymers on the velocity profile and the turbulent energy distribution in channel and pipe flows. Measured mean velocity profiles seem to be in good agreement with the model, which predicts as well the observed increase in turbulent energy near the wall in flows with drag reduction.

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