Flow patterns and stresses on the wall in a moving granular bed with eccentric discharge

被引：19

作者：

Chou, CS ^{[1
]}

Chuang, YC

Smid, J

Hsiau, SS

Kuo, JT

机构：

[1] Natl Pingtung Univ Sci & Technol, Dept Mech Engn, Pingtung 912, Taiwan

[2] Czech Tech Univ, Dept Mech Engn, Prague 16607 6, Czech Republic

[3] Natl Cent Univ, Dept Mech Engn, Chungli 32054, Taiwan

[4] Natl Taiwan Univ, Dept Mech Engn, Taipei 10617, Taiwan

来源：

ADVANCED POWDER TECHNOLOGY | 2002年 / 13卷 / 01期

关键词：

moving granular bed; pressure gauge; pressure pulsation;

D O I：

10.1163/15685520252900929

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The flow patterns and stresses on the wall in a moving granular bed with eccentric discharge were investigated experimentally. The flow pattern histories of granular solids in the moving bed were recorded using a digital camcorder. The image processing system included a frame grabber. A new pressure gauge for simultaneously measuring the normal and shear stresses of granular solids was used. During filling the granular material, the variations in stresses acting on the side walls with time in a granular bed were observed. Also, the dynamic wall stresses were obtained during the eccentric discharge. Employing the results obtained by stress measurements and image processing, the pressure pulsation phenomena in a moving granular bed may be understood further.

引用

页码：1 / 23

页数：23

共 55 条

[31] DISCRETE ELEMENT SIMULATION OF GRANULAR FLOW IN 2D AND 3D HOPPERS - DEPENDENCE OF DISCHARGE RATE AND WALL STRESS ON PARTICLE INTERACTIONS [J].

LANGSTON, PA ;

TUZUN, U ;

HEYES, DM .

CHEMICAL ENGINEERING SCIENCE, 1995, 50 (06) :967-987

[32] CONTINUOUS POTENTIAL DISCRETE PARTICLE SIMULATIONS OF STRESS AND VELOCITY-FIELDS IN HOPPERS - TRANSITION FROM FLUID TO GRANULAR FLOW [J].

LANGSTON, PA ;

TUZUN, U .

CHEMICAL ENGINEERING SCIENCE, 1994, 49 (08) :1259-1275

[33] Exact stress and velocity distributions in a cohesionless material discharging from a conical hopper [J].

Moreea, SBM ;

Nedderman, RM .

CHEMICAL ENGINEERING SCIENCE, 1996, 51 (16) :3931-3942

[34]

Pieper K., 1964, DRUCKVERHALTNISSE SI

[35]

RAGNEAU E, 1993, THESIS INSA RENNES

[36]

REIMBERT A, 1980, P INT C DES SIL STRE, P16

[37]

REIMBERT ML, 1987, SILO THEORY PRACTICE

[38] FORCES ON THE WALLS AND STAGNATION ZONES IN A HOPPER FILLED WITH GRANULAR MATERIAL [J].

RISTOW, GH ;

HERRMANN, HJ .

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 1995, 213 (04) :474-481

[39]

RONG G, 1996, MECH DEFORMATION FLO

[40] Simulation of flow behaviour of bulk solids in bins .2. Shear bands, flow corrective inserts and velocity profiles [J].

Rong, GH ;

Negi, SC ;

Jofriet, JC .

JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH, 1995, 62 (04) :257-269

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