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|Title:||Flow characterization of supersonic jets issuing from double-beveled nozzles||Authors:||Wu, Jie
Cui, Y. D.
Lim, Hao Xiang
New, Tze How
|Issue Date:||2019||Source:||Wu, J., Lim, H. D., Wei, X., New, T. H., & Cui, Y. D. (2019). Flow characterization of supersonic jets issuing from double-beveled nozzles. Journal of Fluids Engineering, 141(1), 011202-.doi:http://dx.doi.org/10.1115/1.4040447||Series/Report no.:||Journal of Fluids Engineering||Abstract:||Supersonic jets at design Mach number of 1.45 issuing from circular 30 deg and 60 deg double-beveled nozzles have been investigated experimentally and numerically in the present study, with a view to potentially improve mixing behavior. Reynolds-averaged Navier–Stokes (RANS) simulations of the double-beveled nozzles and a benchmark nonbeveled nozzle were performed at nozzle-pressure-ratios (NPR) between 2.8 and 5.0, and the results are observed to agree well with Schlieren visualizations obtained from a modified Z-type Schlieren system. Double-beveled nozzles are observed to produce shorter potential core lengths, modifications to the first shock cell lengths that are sensitive toward the NPR and jet half-widths that are typically wider and narrower along the trough-to-trough (TT) and peak-to-peak (PP) planes, respectively. Lastly, using double-beveled nozzles leads to significant mass flux ratios at NPR of 5.0, with a larger bevel-angle demonstrating higher entrainment levels.||URI:||https://hdl.handle.net/10356/89899
|ISSN:||0098-2202||DOI:||10.1115/1.4040447||Rights:||© 2019 ASME. All rights reserved.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||MAE Journal Articles|
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