CFD Prediction of Multiple Jet Impingement in a Reflow Soldering Process

Flávia V. Barbosa (), João P. V. Silva (), Senhorinha F. C. Teixeira (), Delfim F. Soares (), Duarte N. F. Santos (), Isabel A. C. Delgado () and José Carlos. F. Teixeira ()
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Flávia V. Barbosa: University of Minho, MEtRICs I&D Centre, Department of Mechanical Engineering, School of Engineering
João P. V. Silva: University of Minho, MEtRICs I&D Centre, Department of Mechanical Engineering, School of Engineering
Senhorinha F. C. Teixeira: University of Minho, ALGORITMI I&D Centre, Department of Production and Systems, School of Engineering
Delfim F. Soares: University of Minho, CMEMS I&D Centre, Department of Mechanical Engineering, School of Engineering
Duarte N. F. Santos: Bosch Car Multimédia (CM/MFT3)
Isabel A. C. Delgado: Bosch Car Multimédia (CM/MFT3)
José Carlos. F. Teixeira: University of Minho, MEtRICs I&D Centre, Department of Mechanical Engineering, School of Engineering

Chapter Chapter 11 in Transactions on Engineering Technologies, 2019, pp 141-158 from Springer

Abstract: Abstract Multiple jet impingement is a technology widely implemented in reflow soldering process. Forced convection through jet impingement allows high average heat transfer coefficients and increases the uniformity of the heat transfer over the target surface. These characteristics are required to enhance the process and to avoid local hot (or cold) spots. To reduce products defects, all the variables identified in reflow soldering need to be controlled. Generating such data from experimentation is quite demanding in terms of planning, facilities and cost of experimentation. In that sense, to improve industrial processes and to reduce time and costs, the implementation of the computational simulation plays an important role. Considering the relevance of this area for the industry, this paper presents the numerical modeling of multiple air jets system using the SST k-ω model, considered by several authors as the most appropriate turbulence model for jet impingement simulation. Through the CFD study, it is possible to analyze the flow behavior of air jets considering different nozzle shapes but also the variation of the surface temperature and heat transfer with time. Results revealed an accurate simulation of the jets flow field from the nozzle plate to the target surface. The jet-to-jet and jet-to-plate interactions were clearly identified, proving that the variables identified in a multiple jet system need to be cautiously analyzed since they interfere with the performance of the heat transfer over the target surface.

Keywords: Jet impingement; Reflow soldering; Heat transfer; Flow; Velocity profile; Numerical simulation (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-981-32-9531-5_11

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DOI: 10.1007/978-981-32-9531-5_11

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