Slow dripping of yield-stress fluids

被引：11

作者：

Al Khatib, MAM ^{[1
]}

Wilson, SDR ^{[1
]}

机构：

[1] King Fahd Univ Petr & Minerals, HBCC, Dept Math Sci, Dhahran, Saudi Arabia

来源：

JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME | 2005年 / 127卷 / 04期

关键词：

Bingham model; viscoplastic fluids; slow dripping; biviscosity model;

D O I：

10.1115/1.1949633

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The dripping problem of a viscoplastic (yield-stress) liquid running slowly out of a narrow vertical tube is considered. The volume of the drops which break away is determined. A Lagrangian coordinate system is used to analyze the extension of the thread as it sags under its own weight, neglecting inertia and capillarity. The biviscosity model has been used to characterize viscoplastic fluids; the Newtonian and Bingham models can be recovered as limiting cases. The Bingham limit is of special interest.

引用

页码：687 / 690

页数：4

共 16 条

[1] The stretching of a viscoplastic thread of liquid [J].

Al Khatib, MAM .

JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2003, 125 (06) :946-951

[2] Theoretical analysis of a dripping faucet [J].

Ambravaneswaran, B ;

Phillips, SD ;

Basaran, OA .

PHYSICAL REVIEW LETTERS, 2000, 85 (25) :5332-5335

[3] THE YIELD STRESS MYTH [J].

BARNES, HA ;

WALTERS, K .

RHEOLOGICA ACTA, 1985, 24 (04) :323-326

[4] NUMERICAL-ANALYSIS OF 3-DIMENSIONAL BINGHAM PLASTIC-FLOW [J].

BEVERLY, CR ;

TANNER, RI .

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS, 1992, 42 (1-2) :85-115

[5] Computational and experimental analysis of pinch-off and scaling [J].

Chen, AU ;

Notz, PK ;

Basaran, OA .

PHYSICAL REVIEW LETTERS, 2002, 88 (17) :4

[6]

Coullet P, 2000, PROG THEOR PHYS SUPP, P507, DOI 10.1143/PTPS.139.507

[7] Nonlinear dynamics and breakup of free-surface flows [J].

Eggers, J .

REVIEWS OF MODERN PHYSICS, 1997, 69 (03) :865-929

[8] Simulation of a dripping faucet [J].

Fuchikami, N ;

Ishioka, S ;

Kiyono, K .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1999, 68 (04) :1185-1196

[9] LIQUID EXTRACTION DURING DROP FORMATION - EFFECT OF FORMATION TIME [J].

HEIDEGER, WJ ;

WRIGHT, MW .

AICHE JOURNAL, 1986, 32 (08) :1372-1376

[10]

PAPPEN R, 1998, P IBC INT C MASS PAR

← 1 2 →