Numerical Investigation on Oscillation Behavior of a Non-isothermal Self-excited Jet in a Cavity: The Effects of Reynolds Number and Temperature Differences

Document Type : Original Article

Authors

1 Department of Mechanical Engineering, University of Birjand, Birjand, Iran

2 Department of Mechanical and Aerospace Engineering, Shiraz University of Technology, Shiraz, Iran

Abstract

A self-excited oscillating jet can be naturally produced by discharging a plane jet into a rectangular cavity due to pressure effects and without a need for external aid. In recent years, the self-oscillatory jet in non-isothermal conditions has attracted research interests because of its wide range of industrial applications. Therefore, the current study aimed to compare the oscillatory behavior of downward vertical self-excited jet with Reynolds number (Re) 1000 and 3000 under various temperature differences (0, 100, and 300 K) between inletflow and cavity’s wall. Computational solutions were obtained using unsteady Reynolds averaged Navier-Stokes (URANS) and energy equations for an incompressible flow. The numerical simulation was carried out by the finite-volume based tool OpenFOAM code. The results showed that depending on the value of temperature difference, oscillatory and non-oscillatory flows were observed. Also, at Re=3000, the temperature differences can change oscillation frequency up to 10% compared to isothermal conditions. This value reaches 58% at Re=1000. The results indicated that where the Archimedes number is less than 0.1, the effects of temperature differences between jet and cavity walls on the oscillating behavior are negligible.

Keywords

Main Subjects

References

  1. Vejrazka, J. Tihon, P. Mart, and V. Sobolík, “Effect of an external excitation on the flow structure in a circular impinging jet”, Physics of Fluids, Vol. 17, No. 10, (2005), 1-14. DOI:10.1063/1.2084207
  2. Husain and M. Ariz, “Thermal Performance of Jet Impingement with Spent Flow Management”, International Journal of Engineering, Transactions A: Basics, Vol. 30, No. 10, (2017), 1599-1608. DOI: 10.5829/ije.2017.30.10a.22
  3. Wen, J. Liu, Z. Li, D. Peng, W. Zhou, and K. Chun, “Jet impingement using an adjustable spreading-angle sweeping jet”, Aerospace Science and Technology, Vol. 105, (2020), 105956. DOI: 10.1016/j.ast.2020.105956
  4. [4] Jahanmiri, “Static pressure distribution in an excited jet: some observations”, International Journal of Engineering, Vol. 13, No. 3, (2000), 81-86.
  5. M. Maghrabie, “Heat transfer intensification of jet impingement using exciting jets - A comprehensive review”, Renewable and Sustainable Energy Reviews, Vol. 139, (2021), 110684. DOI: 10.1016/j.rser.2020.110684
  6. Mataoui and R. Schiestel, “Unsteady phenomena of an oscillating turbulent jet flow inside a cavity : effect of aspect ratio”, Journal of Fluids and Structures, Vol. 25, (2009), 60-79. DOI: 10.1016/j.jfluidstructs.2008.03.01
  7. Shakouchi, Y. Yoshikazu, and T. Ito, “A study on oscillatory jet in a cavity : lst report, mechanism of oscillation”, Bulletin of JSME, Vol. 25, No. 7, (1982), 767-769. DOI: 10.1299/jsme1958.25.1258
  8. Carnero, C. Treviño, and L. Martínez-Suástegui, “Three-dimensional deflecting oscillation of turbulent planar opposed jets confined in an open cavity under crossflow”, Physics of Fluids, Vol. 32, (2020), 105101. DOI: 10.1063/5.0021501
  9. Mataoui, R. Schiestel, and A. Salem, “Flow regimes of interaction of a turbulent plane jet into a rectangular cavity: experimental approach and numerical modelling”, Flow, Turbulence and Combustion, Vol. 67, (2001), 267-304. DOI: 10.1023/A:1015255211723
  10. M. Denisikhina, I. . A. Bassina, D. A. Nikulin, and M. K. Strelets, “Numerical simulation of self-excited oscillation of a turbulent jet flowing into a rectangular cavity,” High Temperature, Vol. 43, No. 4,( 2005), 568-579. DOI: 10.1007/s10740-005-0098-0
  11. W. Righolt, S. Kenjereš, R. Kalter, M. J. Tummers, and C. R. Kleijn, “Dynamics of an oscillating turbulent jet in a confined cavity”, Physics of Fluids, Vol. 62, (2015), 395-406. DOI: 10.1063/1.4930926
  12. Iachachene, A. Mataoui, and Y. Halouane, “Numerical investigations on heat transfer of self-sustained oscillation of a turbulent jet flow inside a cavity”, Journal of Heat Transfer, Vol. 137, (2015), 1-10.
  13. Mosavati, R. M. Barron, and R. Balachandar, “Characteristics of self-oscillating jets in a confined cavity”, Physics of Fluids, Vol. 32, No. 11,(2020), 115103. DOI: 10.1063/5.0023833
  14. Hnaien, S. Marzouk Khairallah, H. Ben Aissia, and J. Jay, “Numerical study of interaction of two plane parallel jets,” International Journal of Engineering, Transactions A: Basics, Vol. 29, No. 10, (2016), 1421-1430. DOI: 10.5829/ije.2022.35.03c.06
  15. Bouaraour and N. Hebbir, “Numerical study of twin jets interactions using Realizable model”, International Journal of Engineering, Transactions C: Aspects, Vol. 35, No. 3, (2022), 544-551. DOI: 10.5829/ije.2022.35.03c.06
  16. Aminzadeh, J. Khadem, S. A. Zolfaghari, and A. Omidvar, “Numerical comparative study between flow field characteristics of a double-inlet and single- inlet self-excited jet,” in ISME 2020, (2020), 27-30.
  17. Aminzadeh, J. Khadem, S. A. Zolfaghari, and A. Omidvar, “Numerical study of nozzle width effect on cooling performance of a turbulent impinging oscillating jet in a heated cavity”, International Communications in Heat and Mass Transfer, Vol. 118, (2020), 104899. DOI: 10.1016/j.icheatmasstransfer.2020.104899
  18. Aminzadeh, J. Khadem, S. Alireza, and A. Omidvar, “Computational study on self-oscillatory flow induced by vertical and horizontal jets in partially heated and cooled cavities,” International Communications in Heat and Mass Transfer, Vol. 129, (2021), 105680. DOI: 10.1016/j.icheatmasstransfer.2021.105680
  19. Aminzadeh, J. Khadem, A. Zolfaghari, and A. Omidvar, “Influence of a non-isothermal conditions on oscillation characteristics of self-excited jet in a rectangular cavity,” in 18th Fluid Dynamics Conference, (2019).
  20. Yamasawa, T. Kobayashi, T. Yamanaka, N. Choi, and M. Matsuzaki, “Experimental investigation of difference in indoor environment using impinging jet ventilation and displacement ventilation systems”, International Journal of Ventilation, (2020), 1-18. DOI: 10.1080/14733315.2020.1864572
International Journal of Engineering
Volume 35, Issue 6
TRANSACTIONS C: Aspects
June 2022
Pages 1193-1201

Files

Cited by

Share

How to cite

Statistics