Roles of drag reducing polymers in single-and multi-phase flows

A Abubakar, T Al-Wahaibi, Y Al-Wahaibi… - … research and design, 2014 - Elsevier
It has become a well-known fact that finding sustainable solutions to the unavoidable high
pressure losses accompanying pipeline flows to increase the pumping capacity without …

Polymer drag reduction: A review through the lens of coherent structures in wall-bounded turbulent flows

Z Saeed, BR Elbing - Physics of Fluids, 2023 - pubs.aip.org
The current work qualitatively surveys the phenomenon of polymer drag reduction from the
standpoint of the salient coherent motions in the near-wall region of wall-bounded turbulent …

[HTML][HTML] An eddy-viscosity model for turbulent flows of Herschel–Bulkley fluids

S Lovato, GH Keetels, SL Toxopeus… - Journal of Non-Newtonian …, 2022 - Elsevier
This article presents a new turbulence closure based on the k-ω SST model for predicting
turbulent flows of Herschel–Bulkley fluids, including Bingham and power-law fluids. The …

Reynolds-averaged modeling of turbulent flows of power-law fluids

AA Gavrilov, VY Rudyak - Journal of Non-Newtonian Fluid Mechanics, 2016 - Elsevier
The paper presents a novel Reynolds-averaged turbulence model for flows of power-law
fluid. The model uses the elliptic relaxation approach to capture the near-wall turbulence …

CFD simulation of drag-reducing fluids in a non-Newtonian turbulent pipe flow

M Niazi, SN Ashrafizadeh, SH Hashemabadi… - Chemical Engineering …, 2024 - Elsevier
The conveyance of fluids from one terminal to another incurs considerable expenses
primarily due to the significant costs associated with addressing pressure losses arising from …

A FENE-P k–ε turbulence model for low and intermediate regimes of polymer-induced drag reduction

PR Resende, K Kim, BA Younis, R Sureshkumar… - Journal of Non …, 2011 - Elsevier
A new low-Reynolds-number k–ε turbulence model is developed for flows of viscoelastic
fluids described by the finitely extensible nonlinear elastic rheological constitutive equation …

Geometric decomposition of the conformation tensor in viscoelastic turbulence

I Hameduddin, C Meneveau, TA Zaki… - Journal of Fluid …, 2018 - cambridge.org
This work introduces a mathematical approach to analysing the polymer dynamics in
turbulent viscoelastic flows that uses a new geometric decomposition of the conformation …

Turbulence statistics and flow structure in fluid flow using particle image velocimetry technique: A review

PO Ayegba, LC Edomwonyi‐Otu - Engineering Reports, 2020 - Wiley Online Library
Particle image velocimetry (PIV) measurement technique provides an excellent opportunity
for investigating instantaneous spatial structures which are not always possible with point …

A viscoelastic k-ε-v2-f turbulent flow model valid up to the maximum drag reduction limit

M Masoudian, K Kim, FT Pinho… - Journal of Non-Newtonian …, 2013 - Elsevier
A tensorially consistent near-wall four equation model is developed to model turbulent flow
of dilute polymer solutions. The model is validated up to the maximum drag reduction limit …

[HTML][HTML] RANS modeling of turbulent flow and heat transfer of non-Newtonian viscoplastic fluid in a pipe

MA Pakhomov, UK Zhapbasbayev - Case Studies in Thermal Engineering, 2021 - Elsevier
A mathematical model of the movement and heat transfer of a turbulent non-isothermal non-
Newtonian fluid through a pipe wall with a cold surrounding space has been developed and …