EFFECT OF SWIRL CHAMBER LENGTH ON THE ATOMIZATION CHARACTERISTICS OF A PRESSURE-SWIRL NOZZLE

被引：27

作者：

Dafsari, Reza Alidoost ^{[1
]}

Vashahi, Foad ^{[1
]}

Lee, Jeekeun ^{[2
]}

机构：

[1] Chonbuk Natl Univ, Grad Sch, Dept Mech Syst Engn, Jeonju 561756, Jeollabuk Do, South Korea

[2] Chonbuk Natl Univ, Div Mech Syst Engn, Jeonju 561756, Jeollabuk Do, South Korea

来源：

ATOMIZATION AND SPRAYS | 2017年 / 27卷 / 10期

关键词：

hollow-cone spray; phase-Doppler particle analyzer; pressure-swirl atomizer; Sauter mean diameter; solid-cone spray; swirl chamber length; SIMPLEX FUEL NOZZLE; SPRAY CHARACTERISTICS; GEOMETRIC PARAMETERS; FLOW CHARACTERISTICS; INTERNAL FLOW; AIR-CORE; ATOMIZERS; WATER; SIZE; ANGLE;

D O I：

10.1615/AtomizSpr.2017024777

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An investigation on characteristics of spray generated by a pressure-swirl atomizer with adjustable swirl chamber length was performed. Spray characteristics were studied within the range of (0.12 < length/diameter < 0.5) using water as the working fluid. Droplet Sauter mean diameter and velocity components were measured using a phase Doppler particle analyzer device. The spray cone angle was measured from image processing of images captured by a set of Nd-YAG lasers and a high-speed camera. It was found that the swirl chamber length/diameter ratio significantly affects the spray characteristics such as droplet size distribution and mean diameter and also velocity profile. The spray pattern for the smallest ratio was observed as a hollow-cone type and then was changed to a solid-cone type by increasing the investigated parameter. The effective ratio of the swirl chamber was found to be in the range of (0.12 < length/diameter < 0.30), where all the dramatic changes occur.

引用

页码：859 / 874

页数：16

共 48 条

[1]

[Anonymous], 2003, EXP FLUID MECH

[2]

Ashgriz N, 2011, HANDBOOK OF ATOMIZATION AND SPRAYS: THEORY AND APPLICATIONS, P1, DOI 10.1007/978-1-4419-7264-4

[3] COALESCENCE AND SEPARATION IN BINARY COLLISIONS OF LIQUID-DROPS [J].

ASHGRIZ, N ;

POO, JY .

JOURNAL OF FLUID MECHANICS, 1990, 221 :183-204

[4]

BALLESTER J, 1994, ATOMIZATION SPRAY, V4, P351

[5]

Carlisle D.R., 1955, Proceedings Institutie of Mechanical Engineering, V169, P101

[6] FACTORS INFLUENCING THE EFFECTIVE SPRAY CONE ANGLE OF PRESSURE-SWIRL ATOMIZERS [J].

CHEN, SK ;

LEFEBVRE, AH ;

ROLLBUHLER, J .

JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME, 1992, 114 (01) :97-103

[7] INFLUENCE OF DOWNSTREAM DISTANCE ON THE SPRAY CHARACTERISTICS OF PRESSURE-SWIRL ATOMIZERS [J].

CHIN, JS ;

NICKOLAUS, D ;

LEFEBVRE, AH .

JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME, 1986, 108 (01) :219-224

[8] An experimental investigation of swirl atomizer sprays [J].

Chu, Chia-Chien ;

Chou, Shyan-Fu ;

Lin, Heng-I ;

Liann, Yi-Hai .

HEAT AND MASS TRANSFER, 2008, 45 (01) :11-22

[9] SPRAY PATTERNATION AT HIGH-PRESSURE [J].

COHEN, JM ;

ROSFJORD, TJ .

JOURNAL OF PROPULSION AND POWER, 1991, 7 (04) :481-487

[10]

Crowe C. T., 2006, Multiphase flow handbook

← 1 2 3 4 5 →