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2017 | OriginalPaper | Buchkapitel

5. Spray Impingement Fundamentals

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Autoren: Sanjeev Chandra, Javad Mostaghimi

Verlag: Springer International Publishing

Erschienen in: Metal Sprays and Spray Deposition

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Abstract

Chapter 5 will review the dynamics of both single droplets and sprays of molten metals landing on solid surfaces. Droplets landing on a solid substrate flatten out and solidify; the splats may either be disc shaped or fragmented, depending on impact conditions. Multiple droplets impacting on a surface fuse with each other to form a solid layer. The dynamics of single droplet impact and solidification are discussed. The thermal contact resistance between the droplet and substrate on the solidification rate is important in determining the solidification rate and the splat shape. An overview is given of numerical models to simulate droplet impact and solidification. The impact and coalescence of multiple droplets in a spray to form a solid layer is described. Monte Carlo and smoothed particle hydrodynamics methods can be used to simulate droplet impact and coalescence in a spray and predict properties such as coating thickness and porosity.

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Titel

Spray Impingement Fundamentals

Buch

Metal Sprays and Spray Deposition

Print ISBN: 978-3-319-52687-4

Electronic ISBN: 978-3-319-52689-8

https://doi.org/10.1007/978-3-319-52689-8

DOI

https://doi.org/10.1007/978-3-319-52689-8_5

Autoren:

Sanjeev Chandra
Javad Mostaghimi

Verlag

Springer International Publishing

Sequenznummer

Kapitelnummer

Chapter 5

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