Proceedings of the 8th International Conference on Engineering Research, Innovation, and Education 2025 (ICERIE 2025)

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Experimental Analysis of Swirl Influence on Mean Flow Characteristics in Free Circular Jets

Authors
S. M. Mehady Hasan1, *, Nafisa Ibnat Tasfee2, Md. Soykot Tanvin Rudro3, M. A. Taher Ali4
1Aeronautical Engineering Dept., United College of Aviation, Dhaka, Bangladesh
2Mechanical Engineering Dept., University of Texas at Arlington, Texas, Arlington, USA
3Flight Operation Department, US Bangla Airlines, Dhaka, Bangladesh
4Aeronautical Engineering Dept., MIST, Dhaka, Bangladesh
*Corresponding author. Email: mehady046@gmail.com
Corresponding Author
S. M. Mehady Hasan
Available Online 18 November 2025.
DOI
10.2991/978-94-6463-884-4_84How to use a DOI?
Keywords
Swirling jet; Vortex; Potential Core; Twisted; Helix angle; Nozzle
Abstract

In this study, a three-hole wedge-shaped yaw meter is used to measure the mean flow characteristics of a circular whirling jet with a diameter of 60 mm. Three nozzles one for free jet and one for whirling jets at five and ten degrees are utilized in this experiment. The nozzles are all 3-D printed from FDM material and have the same profile and exit diameter. Reynolds numbers 8.4e4 and 1.27e5 are used in the experiment, which is based on centerline exit velocity and nozzle exit diameter. The direction of the mean velocity and its profiles are examined in this study, together with the amplitude of the mean axial velocity. The free jet’s saddle-shaped behavior at its departure is absent because to whirling. The fluid rotates anticlockwise and disperses outward due to the centrifugal force produced by the swirl on the main flow field. The jet decays and diffuses considerably sooner than the free jet. It is discovered that the flow is deflected outward by the periphery velocities.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 8th International Conference on Engineering Research, Innovation, and Education 2025 (ICERIE 2025)
Series
Advances in Engineering Research
Publication Date
18 November 2025
ISBN
978-94-6463-884-4
ISSN
2352-5401
DOI
10.2991/978-94-6463-884-4_84How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - S. M. Mehady Hasan
AU  - Nafisa Ibnat Tasfee
AU  - Md. Soykot Tanvin Rudro
AU  - M. A. Taher Ali
PY  - 2025
DA  - 2025/11/18
TI  - Experimental Analysis of Swirl Influence on Mean Flow Characteristics in Free Circular Jets
BT  - Proceedings of the 8th International Conference on Engineering Research, Innovation, and Education 2025 (ICERIE 2025)
PB  - Atlantis Press
SP  - 698
EP  - 706
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-884-4_84
DO  - 10.2991/978-94-6463-884-4_84
ID  - Hasan2025
ER  -