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International Journal of Fluid Mechanics Research

Published 6 issues per year

ISSN Print: 2152-5102

ISSN Online: 2152-5110

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.1 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.0002 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.33 SJR: 0.256 SNIP: 0.49 CiteScore™:: 2.4 H-Index: 23

Indexed in

Numerical and Experimental Investigations of the Spray Coating Process

Volume 24, Issue 1-3, 1997, pp. 322-330
DOI: 10.1615/InterJFluidMechRes.v24.i1-3.320
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ABSTRACT

In the present investigations, phase-Doppler anemometry has been used to perform detailed measurements in the spray painting process including the spray cone and the vicinity of the substrate. Supplementary, techniques have been applied to investigate the quality of the layer on the substrate itself. It could be shown, that the mean droplet diameters obtained in the spray cone of a water borne paint spray are a strong function of the distance from the target, indicating the loss of small droplets following the radially directed air flow near the target, as expected. These small droplets form the so-called overspray, i.e. the fraction of paint which does not reach the substrate.
The experimental results have been used as input data for a numerical program for the calculation of two-phase flows based on the time-averaged Navier-Stokes equations in connection with the k-ε turbulence model and the Lagrangian particle tracking method. Due to the three-dimensional abilities of this program the true flat cone of a air spray gun could be simulated. In addition to the fluid and particle flow field, also the transfer efficiency and the layer formation could be calculated. A very good agreement between calculations and measurements with respect to the layer thickness distribution was found. Furthermore, measured and calculated transfer efficiencies agree within less than 2%. Thus, the developed program represents an excellent tool for a future optimization of the spray coating process.

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