A Comparison of Classical and Pulsating Jets in Crossflow at Various Strouhal Numbers
Joint Authors
Chang, Jianlong
Shao, Xudong
Li, Jiangman
Hu, Xiao
Source
Mathematical Problems in Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-23
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Investigation of the classical and pulsating jet in crossflow (JICF) at a low Reynolds number (Re = 100) has been performed by the LES method based on varied velocity ratios (r= 1~4).
Time-averaged particle trajectories are compared in the classical and pulsating JICF.
The formation mechanism and the corresponding flow characteristics for the counter-rotating vortex pair (CRVP) have been analyzed.
An unexpected “vortex tail” has been found in the JICF at higher velocity ratio due to the enhanced interactions indicated by the increased jet momentum among the CRVP, upright vortices, and shear layers.
The analysis of time-averaged longitudinal vorticity including a coupling mechanism between vortices has been performed.
The returning streamlines appear in the pulsating JICF, and two extra converging points emerge near the nozzle of the jet at different Strouhal numbers.
The temperature profiles based on the iso-surface for the classical and pulsating JICF have been obtained computationally and analyzed in detail.
American Psychological Association (APA)
Chang, Jianlong& Shao, Xudong& Li, Jiangman& Hu, Xiao. 2017. A Comparison of Classical and Pulsating Jets in Crossflow at Various Strouhal Numbers. Mathematical Problems in Engineering،Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1190683
Modern Language Association (MLA)
Chang, Jianlong…[et al.]. A Comparison of Classical and Pulsating Jets in Crossflow at Various Strouhal Numbers. Mathematical Problems in Engineering No. 2017 (2017), pp.1-14.
https://search.emarefa.net/detail/BIM-1190683
American Medical Association (AMA)
Chang, Jianlong& Shao, Xudong& Li, Jiangman& Hu, Xiao. A Comparison of Classical and Pulsating Jets in Crossflow at Various Strouhal Numbers. Mathematical Problems in Engineering. 2017. Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1190683
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1190683