Abstract
The Flow measurements were made in the circular jets using two tabs at nozzle exit, placed diametrically opposite locations. The total pressure was measured along the jet axis (X-Axis) and normal to the jet axis (Y-Axis) at Mach number 0.2. Also, total pressure was measured for free jet to compare the results. The effectiveness of circular solid tabs and circular tabs with hole to enhance the mixing of axi-symmetric subsonic jets has been presented in this paper. It is found that both the circular solid tabs and circular tabs with hole significantly enhance the mixing of jets. The potential core length were reduced by 37.5% and 62.5% for jet of circular tab with hole and solid tabbed jet compared to free jet respectively.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Abbreviations
- M:
-
Mach number
- Pe:
-
Exit Total Pressure
- Po:
-
Settling Chamber Pressure
- D:
-
Exit Diameter of Nozzle
- X:
-
Distance along the jet axis
- Y & Z:
-
Distance normal to the jet axis
References
Bradbury LJS, Khadem AH (1975) The distortion of jet by tabs. J Fluid Mech 70:801–813
Bhol D, Foss JF (1996) Enhancement of Passive Mixing Tabs by the Addition of Secondary Tabs. AIAA, pp. 96–054
Reeder MF, Samimy M (1993) The evolution of axi-symetric jet with vortex generating tabs. ASME FED, Turbulent Mixing, vol 174. New Orleance, L.A. USA, pp. 1–6
Lovaraju P, Rathakrishnan E (2006) Subsonic and transonic control with cross wire. AIAA 44
Thanigaiarasu S, Jayaprakash S, Elangovan S, Rathakrishnan E (2008) Influence of tab geometry and its orientation in under expanded sonic jets. Proceeding I Mech. E. Part G J: Aerospace Engineering 222
Zaman Reeder MF, Samimy M (1993) Effect of tabs on the flow and noise field of an axi-symmetric jet. AIAA 31:609–619
Ahuja KK, Brown WH (1989) Shear flow control by mechanical tabs. AIAA, pp.89–0994
Singh NK, Rathakrishnan E (2002) Sonic jet control with tabs. Int J Turbo Jet engines 19:107–118
Knowles K, Saddington AJ (2005) A review of jet mixing enhancement of aircraft propulsion applications. J Aerosp Eng Part G 220:103–123
Clement S, Rathakrishnan E (2006) Characteristics of sonic jet with tabs. Shock Waves, vol 15. pp 211–214
Rathakrishnan E (2009) Experimental studies on the limiting tab. AIAA 47:2475–2485
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Thanigaiarasu, S., Yadav, S.K., Jabez Richards, S.B., Muthuram, A., Vijay Raj, T. (2020). Effects of Circular Tabs on Enhancement of Jet Mixing. In: Rajendran, P., Mazlan, N., Rahman, A., Suhadis, N., Razak, N., Abidin, M. (eds) Proceedings of International Conference of Aerospace and Mechanical Engineering 2019 . Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-4756-0_37
Download citation
DOI: https://doi.org/10.1007/978-981-15-4756-0_37
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-15-4755-3
Online ISBN: 978-981-15-4756-0
eBook Packages: EngineeringEngineering (R0)