Turbulent Drag Reduction by Biopolymers in Large Scale Pipes

被引:16
作者
Campolo, Marina [1 ]
Simeoni, Mattia [2 ]
Lapasin, Romano [3 ]
Soldati, Alfredo [2 ,4 ]
机构
[1] Univ Udine, Dept Chem Phys & Environm, I-33100 Udine, Italy
[2] Univ Udine, Dept Elect Management & Mech Engn, I-33100 Udine, Italy
[3] Univ Trieste, Dept Engn & Architecture, I-34128 Trieste, Italy
[4] CISM, I-33100 Udine, Italy
来源
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME | 2015年 / 137卷 / 04期
关键词
CHANNEL FLOW; DIAMETER; LAMINAR; RHEOLOGY; POLYMERS; LIQUIDS; FLUIDS;
D O I
10.1115/1.4028799
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
In this work, we describe drag reduction experiments performed in a large diameter pipe (i.d. 100 mm) using a semirigid biopolymer Xanthan Gum (XG). The objective is to build a self-consistent data base which can be used for validation purposes. To aim this, we ran a series of tests measuring friction factor at different XG concentrations (0.01, 0.05, 0.075, 0.1, and 0.2% w/w XG) and at different values of Reynolds number (from 758 to 297,000). For each concentration, we obtain also the rheological characterization of the test fluid. Our data is in excellent agreement with data collected in a different industrial scale test rig. The data is used to validate design equations available from the literature. Our data compare well with data gathered in small scale rigs and scaled up using empirically based design equations and with data collected for pipes having other than round cross section. Our data confirm the validity of a design equation inferred from direct numerical simulation (DNS) which was recently proposed to predict the friction factor. We show that scaling procedures based on this last equation can assist the design of piping systems in which polymer drag reduction can be exploited in a cost effective way.
引用
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页数:11
相关论文
共 39 条
[1]   Reynolds number dependence of drag reduction by rodlike polymers [J].
Amarouchene, Yacine ;
Bonn, Daniel ;
Kellay, Hamid ;
Lo, Ting-Shek ;
L'vov, Victor S. ;
Procaccia, Itamar .
PHYSICS OF FLUIDS, 2008, 20 (06)
[2]   RHEOLOGICAL AND DRAG REDUCTION CHARACTERISTICS OF XANTHAN GUM SOLUTIONS [J].
BEWERSDORFF, HW ;
SINGH, RP .
RHEOLOGICA ACTA, 1988, 27 (06) :617-627
[3]   Pressure loss equations for laminar and turbulent non-Newtonian pipe flow [J].
Chilton, RA ;
Stainsby, R .
JOURNAL OF HYDRAULIC ENGINEERING-ASCE, 1998, 124 (05) :522-529
[4]   Rheology of xanthan solutions as a function of temperature, concentration and ionic strength [J].
Choppe, Emilie ;
Puaud, Fanny ;
Nicolai, Taco ;
Benyahia, Lazhar .
CARBOHYDRATE POLYMERS, 2010, 82 (04) :1228-1235
[5]  
Colebrook C.F., 1939, J I CIV ENG, V11, P133, DOI DOI 10.1680/IJOTI.1939.13150
[6]  
De Angelis E, 2004, PHYS REV E, V70, DOI 10.1103/PhysRevE.70.055301
[7]   Phase discrimination and object fitting to measure fibers distribution and orientation in turbulent pipe flows [J].
Dearing, Stella S. ;
Campolo, Marina ;
Capone, Alessandro ;
Soldati, Alfredo .
EXPERIMENTS IN FLUIDS, 2013, 54 (01)
[8]   New answers on the interaction between polymers and vortices in turbulent flows [J].
Dubief, Y ;
Terrapon, VE ;
White, CM ;
Shaqfeh, ESG ;
Moin, P ;
Lele, SK .
FLOW TURBULENCE AND COMBUSTION, 2005, 74 (04) :311-329
[9]   Turbulent flow of viscoelastic shear-thinning liquids through a rectangular duct: Quantification of turbulence anisotropy [J].
Escudier, M. P. ;
Nickson, A. K. ;
Poole, R. J. .
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS, 2009, 160 (01) :2-10
[10]  
Escudier MP, 2001, P ROY SOC A-MATH PHY, V457, P911, DOI 10.1098/rspa.2000.0698