Mixing and Entrainment Characteristics of Jet Control with Crosswire

  • S. Manigandan
  • K. Vijayaraja
  • G. Durga Revanth
  • A. V. S. C. Anudeep
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 705)

Abstract

This paper aims to study the effect of passive control on elliptical jet at different levels of nozzle pressure ratio. This experiment is carried out for three different types of configurations at two, four, five, and six NPRs. The results are captured and compared to one another. The rectangular crosswire is used as a passive control and tested at Mach number of two. The crosswire running along the major axis of the elliptical jet exits. The pitot pressure decay and the pressure profiles are plotted for various nozzle expansions. The crosswire is placed at three different positions ¼, ½, and ¾ to alter the shock wave successfully and to promote the mixing of jet. The shock waves are captured using numerical simulations. Due to the introduction of passive control at the exit of issuing jet, the shock wave weakens effectively, which stimulates the mixing promotion of jet by providing a shorter core length. It is witnessed that the efficiency of the mixing is superior when the crosswire is placed at ½ positions than ¼ and ¾. In addition, we also had seen a notable change in axis switching of the jets.

Keywords

Nozzle Supersonic jet Crosswire Core length 

References

  1. 1.
    Kumar, S.A., Rathakrishnan, E.: Characteristics of controlled Mach 2 elliptic jet. J. Propul. Power 32(1), 121–133 (2015)CrossRefGoogle Scholar
  2. 2.
    Rouly, E., Warkentin, A., Bauer, R.: Design and testing of low-divergence elliptical-jet nozzles. J. Mech. Sci. Technol. 29(5), 1993–2003 (2015)CrossRefGoogle Scholar
  3. 3.
    Quinn, W.R.: Streamwise evolution of a square jet cross section. AIAA J. 30(12), 2852–2857 (1992)CrossRefGoogle Scholar
  4. 4.
    Samimy, M., Reeder, M., Zaman, K.: Supersonic jet mixing enhancement by vortex generations. AIAA Paper, 91-2263 (1991)Google Scholar
  5. 5.
    Aravindh Kumar, S.M., Rathakrishnan, E.: Elliptic jet control with triangular tab. Proc. Inst. Mech. Eng. Part G: J. Aerosp. Eng. (2016)Google Scholar
  6. 6.
    Mitruka, J., Singh, P.K., Rathakrishnan, E.: Exit geometry effect on jet mixing. Appl. Mech. Mater. 598, 151–155 (2014)CrossRefGoogle Scholar
  7. 7.
    Hassan, E., Boles, J., Aono, H., Davis, D., Shyy, W.: Supersonic jet and crossflow interaction. Comput. Model. Prog. Aerosp. Sci. 28(57), 1–24 (2013)Google Scholar
  8. 8.
    Manigandan, S., Vijayaraja, K.: Acoustic and mixing characteristic of CD nozzle with inverted triangular tabs. Int. J. Ambient Energy 1–9 (2017)Google Scholar
  9. 9.
    Manigandan, S., Vijayaraja, K.: Flow field and acoustic characteristics of elliptical throat CD nozzle. Int. J. Ambient Energy 1–9 (2017)Google Scholar
  10. 10.
    Manigandan, S., Gunasekar, P., Devipriya, J., Anderson, A., Nithya, S.: Energy-saving potential by changing window position and size in an isolated building. Int. J. Ambient Energy 1–5 (2017)Google Scholar
  11. 11.
    Srivastava, S., Kaushik, M.: Supersonic square jet mixing in presence of cross-wire at nozzle exit. Am. J. Fluid Dyn. 5(3A), 19–23 (2015)Google Scholar
  12. 12.
    Devipriya, J., Manigandan, S., Nithya, S., Gunasekar, P.: Computational investigation of flow over rough flat plate. J. Chem. Pharm. Sci. 974, 2115 (2017)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Sathyabama UniversityChennaiIndia
  2. 2.KCG College of TechnologyChennaiIndia

Personalised recommendations