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Effect of Inner Nozzle Lip Thickness on Co-flow Jet Characteristics

  • T. Srinivasarao , I. Dakshina Murthy , P. Lovaraju and E. Rathakrishnan EMAIL logo
Published/Copyright: February 23, 2016
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Abstract

This paper presents the experimental results of subsonic and underexpanded sonic jets delivered from a central nozzle surrounded by a co-flow. The role of central nozzle lip thickness on the co-flow jet characteristics has been studied. The jet-mixing enhancement is achieved in the case of jet from the thick-lip nozzle compared to that of thin-lip nozzle. The extent of supersonic zone for the thick-lip is much shorter than the thin-lip jet.

References

1. Lovaraju P, Rathakrishnan E. Experimental studies on co-flowing subsonic and sonic jets. Flow, Turbul Combust 2011;87:115–32.10.1007/s10494-011-9332-5Search in Google Scholar

2. Sharma H, Vashishtha A, Lovaraju P, Rathakrishnan E. Experimental study of overexpanded co-flowing jets. Aeronaut J 2008;112:537–46.10.1017/S0001924000002499Search in Google Scholar

3. Srinivasarao T, Lovaraju P, Rathakrishnan E. Effect of co-flow on near field shock structure. ASME J Fluids Eng 2012;134:074501.10.1115/1.4006911Search in Google Scholar

4. Srinivasarao T, Lovaraju P, Rathakrishnan E. Characteristics of co-flow jets from orifices. Int J Turbo Jet Eng 2014;31:141–8.10.1515/tjj-2013-0040Search in Google Scholar

5. Sijith RI, Ramesh R, Pradeep S, Sairam S, Muruganandam TM. Mixing of high-speed coaxial jets. Exp Fluids 2001;30:339–45.10.1007/s003480000203Search in Google Scholar

6. Lee W, Park Y, Kwon K, Taghavi R. Control of shear perturbation in coaxial swirling turbulent jets. Aerosp Sci Technol 2010;14:472–86.10.1016/j.ast.2010.03.002Search in Google Scholar

7. Champagne FH, Kromat S. Experiments on the formation of a recirculation zone in swirling coaxial jet. Exp Fluids 2000;29:494–504.10.1007/s003480000118Search in Google Scholar

8. Behrouzi P, McGuirk JJ. Experimental studies of coaxial jet flows. J Fluid Sci Technol 2007;2:346–58.10.1299/jfst.2.346Search in Google Scholar

9. Rathakrishnan E. Instrumentation, measurements, and experiments in fluids. Boca Raton, FL: CRC Press, 2007.Search in Google Scholar

Received: 2016-1-12
Accepted: 2016-2-3
Published Online: 2016-2-23
Published in Print: 2017-8-28

© 2017 Walter de Gruyter GmbH, Berlin/Boston

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