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Journal of Thermal Science

, Volume 7, Issue 3, pp 165–175 | Cite as

Study on the characteristics of supersonic Coanda jet

  • Shigeru Matsuo
  • Toshiaki Setoguchi
  • Takemasa Kudo
  • Shen Yu
Article

Abstract

Techniques using Coanda effect have been applied to the fluid control devices. In this field, experimental studies were so far performed for the spiral jet obtained by the Coanda jet issuing from a conical cylinder with an annular slit, thrust vectoring of supersonic Coanda jets and so on. It is important from the viewpoints of effective applications to investigate the characteristics of the supersonic Coanda jet in detail. In the present study, the effects of pressure ratios and nozzle configurations on the characteristics of the supersonic Coanda jet have been investigated experimentally by a schlieren optical method and pressure measurements. Furthermore, Navier-Stokes equations were solved numerically using a 2nd-order TVD finite-volume scheme with a 3rd-order three stage Runge-Kutta method for time integration. k - ε model was used in the computations. The effects of initial conditions on Coanda flow were investigated numerically. As a result, the simulated flow fields were compared with experimental data in good agreement qualitatively.

Keywords

supersonic coanda jet hysteresis, numerical simulation boundary layer 

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Copyright information

© Science Press 1992

Authors and Affiliations

  • Shigeru Matsuo
    • 1
  • Toshiaki Setoguchi
    • 1
  • Takemasa Kudo
    • 1
  • Shen Yu
    • 2
  1. 1.Department of Mechanical EngineeringSaga UniversitySagaJapan
  2. 2.Institute of Engineering ThermophysicsChinese Academy of SciencesBeijingChina

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