FAST COMPUTER-SIMULATION OF OPEN-AIR ELECTROSTATIC SPRAY PAINTING

被引:6
作者
MEESTERS, GMH [1 ]
ZEVENHOVEN, CAP [1 ]
BRONS, JFJ [1 ]
VERHEIJEN, PJT [1 ]
机构
[1] DELFT UNIV TECHNOL,DEPT CHEM ENGN,POB 5045,2600 GA DELFT,NETHERLANDS
关键词
Electrostatics - Flow of Fluids - Turbulent - Mathematical Transformations - Fourier Transforms - Protective Coatings - Electrostatic - Spectrum Analysis;
D O I
10.1016/0304-3886(90)90045-W
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A numerical computer simulation has been developed for the electrostatic spray paint process. The theoretical model describes the path of a cloud of charged drops. It takes into account the drop size, temperature, density, viscosity of paint and air, charge of the drops, potential of the sprayer head, the use of air assistance, air-paint ratio, paint flow, wind and turbulence and the distance towards the object. Especially the influence of the wind and wind turbulence on the spraying process was investigated. With increasing crosswind a higher charge, larger drops or air-assisted spraying will keep the efficiency high. Too much charge on the drops will cause the cloud to expand too much. Painting in the open air with a mild wind is possible using the electrostatic spray paint process. © 1990.
引用
收藏
页码:265 / 275
页数:11
相关论文
共 17 条
[1]  
Anestos, A Theoretical Model for Electric Field Distribution and Enhancement in Air Atomized Electrostatic Spray Painting, IEEE Transactions on Industry Applications, 1, (1986)
[2]  
Hakberg, Lundqvist, Carlsson, Hogberg, J. Electrostat., 14, (1983)
[3]  
Ang, Lloyd, Int. J. Multiphase Flow, 13, (1987)
[4]  
Panofsky, Dutton, Atmospheric Turbulence, (1984)
[5]  
Schubert, Heidenreich, Liepe, Neesse, Mechanische Verfahrenstechnik, (1985)
[6]  
Rayleigh, Lord, On the Capillary Phenomena of Jets, Proceedings of the Royal Society of London, 24, (1879)
[7]  
Jones, Thong, J. Phys. D, Appl. Phys., 4, (1971)
[8]  
Sample, Bollini, J. Colloid Interface Sci., 11, 2, (1972)
[9]  
Pfeifer, Hendricks, Phys. Fluids, 10, (1967)
[10]  
Cross, Electrostatics: Principles, Problems and Applications, (1984)