Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/89899
Title: | Flow characterization of supersonic jets issuing from double-beveled nozzles | Authors: | Wu, Jie Wei, Xiaofeng Cui, Y. D. Lim, Hao Xiang New, Tze How |
Keywords: | Schlieren Visualization Nozzles DRNTU::Engineering::Aeronautical engineering |
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 http://hdl.handle.net/10220/47747 |
ISSN: | 0098-2202 | DOI: | 10.1115/1.4040447 | Schools: | School of Mechanical and Aerospace Engineering | Rights: | © 2019 ASME. All rights reserved. | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | MAE Journal Articles |
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