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Simulation of the Shaping Air and Spray Transport in Electrostatic Rotary Bell Painting Process
Technical Paper
2002-01-2106
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A numerical study of the electrostatic rotary bell paint spray transport region is carried out using a newly developed simulation code. Firstly, a time-accurate Navier-Stokes equation solver, utilizing the space-time conservation-element/solution-element methods, simulates the shaping air based on the known boundary and initial condition. Secondly, a particle trajectory solver, which interacts with airflow by momentum coupling, is applied to simulate the paint spray characteristics. Thirdly, an analytical solution of electrostatic field is coupled to simulate realistic electrostatic rotary bell paint sprayer. The integrated software is then applied to simulate the paint spray transport processes according to the operating conditions of interest. The numerical results show that the spray flow is very sensitive to some of the operation parameters. The transfer efficiency and the uniformity of paint distribution increase with charge-to-mass ratio and electrostatic voltage. However, with high shaping airflow rate, the numerical transfer efficiency decreased while the mass distribution becomes more uniform. The parametric study supplies valuable fundamental information to the spray transfer process, although more research is needed to include the effects of atomization and more electrostatics physics.
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Citation
Im, K., Yu, J., Lai*, M., and Meredith, W., "Simulation of the Shaping Air and Spray Transport in Electrostatic Rotary Bell Painting Process," SAE Technical Paper 2002-01-2106, 2002, https://doi.org/10.4271/2002-01-2106.Also In
References
- Anderson, D.A. Tannehill, J.C. Pletcher, R.H. 1984 “Computational Fluid Mechanics and Heat Transfer” Hemisphere
- Amsden, A.A. O'Rourke, P.J. Butler, T.D. 1989 “KIVA-II: A Computer Program for Chemically Reactive Flows with Sprays,” Los Alamos Nat'l Lab. Report LA-11560-MS
- Bell, G. C. Hochberg, J. 1981 “Mechanisms of Electrostatic Atomization, Transport, and Deposition of Coating,” Proceedings of 7 th International Conference in Organic Science and Technology Athens, Greece
- Bellan, J. 1983 “A New Approach to Soot Control in Diesel Engines by Fuel-Drop Charging,” Combust. Flame 51 117 119
- Chang, S.C. 1995 “The Method of Space-Time Conservation Element and Solution Element - A New Approach for Solving the Navier Stokes and Euler Equations J. Comput. Phys. 191 295 324
- Dukowicz, J.K. 1980 “A Particle-Fluid Numerical Model for Liquid Sprays,” J. of Computational Physics 35 229 253
- Elmoursi, A.A. 1989 “Laplacian Fields of Bell-Type Electrostatic Painting Systems,” IEEE Transaction on Industry Application 25 2 234 240
- Ghia, U. Ghia, K.N. Shin, C.T. “High-Re Solutions for Incompressible Flow Using the Navier-Stokes Equations and a Multigrid Method,” J. Comp. Phys. 48 387 411 1982
- Grace, J.M. Dunn, P.F. 1994 “Droplet Motion in an Electrohydrodynamic Fine Spray,” ICLASS-94 Rouen, France 1002 1009
- Huang, H. Lai, M.-C. 2000 “Simulation of Automotive Electrostatics Rotary-Bell Paint Spray Transfer Processes using KIVA-3V,” ICLASS 2000 1435 1437 Pasadena, CA July 16-20 2000
- Im, K.-S. Liu, Y. Lai, M.-C. Shankagiri, N. Loch, T. Skender, M. Nivi, H. 2001 “Visualization and Measurement of Automotive Electrostatic Rotary-Bell Paint Spray Transfer Processes,” J. Fluid Engineering 123 2 237 245 June 2001
- Lai, M.-C. Im, K.-S. Liu, Y. Skender, M. Nivi, H. 1997 “Visualization and Measurement of Automotive Electrostatic Rotary-Bell Paint Spray Transfer Processes,” Proc. ASME FED. 244 243 253
- Liu, Y. Lai, M.-C. Im, K.-S. Shankagiri, N. Loch, T. Nivi, H. 1999 “An Experimental Investigation of Spray Transfer Processes in an Electrostatic Rotating Bell Applicator,” J. Material Manufacturing , SAE Transc. 107 5 1235 1243 SAE 982290
- Miller, R. Strumolo, G. Babu, V. Braslaw, J. Mehta, M. 1998 “Transient CFD Simulations of a Bell Sprayer,” Proceedings of the IBEC'98 4 29 37
- Shrimpton, J.S. Watkins, A.P. Yule, A.J. 1997 “A Turbulent, Transient Charged Spray Model,” ICLASS-'97 820 827 Seoul
- True, M.A. 1983 “Modeling of Electrostatic Spary Plumes,” IEEE Transaction on Industry Applications IA-19 5 754 758
- Zhang, Z.-C. et al 1999 “A Modified Space-Time CE/SE Method for Solving Euler and Navier-Stokes Equations,” Proceeding of the 1999 AIAA Conference