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Turbulent jets have numerous applications in aerospace and several other industries. In particular, studying turbulent flows issuing from multi-jets is vital in designing the optimal aircraft for thrust vectoring and stealth applications. This paper investigates the basic multi-jet, a twin jet issuing from circular orifices, with a spacing-to-diameter ratio of 2 at a jet exit Mach number of 0.8 and was simulated using a RANS-based two equation turbulence model SST \(k-\omega \) . To study the effect of twin jets on mixing characteristics, the potential core length, turbulent intensity, decay and spread rates, and mean velocity profiles in the transverse direction are studied and compared with the free jet case.

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Mixing Characteristics of a Subsonic Twin Jet Configuration

  • 会议论文

  • 发表日期：

    2025年

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  • Chitimada Narendrakumar,
  • K. P. Sinhamahapatra

摘要

Turbulent jets have numerous applications in aerospace and several other industries. In particular, studying turbulent flows issuing from multi-jets is vital in designing the optimal aircraft for thrust vectoring and stealth applications. This paper investigates the basic multi-jet, a twin jet issuing from circular orifices, with a spacing-to-diameter ratio of 2 at a jet exit Mach number of 0.8 and was simulated using a RANS-based two equation turbulence model SST \(k-\omega \) . To study the effect of twin jets on mixing characteristics, the potential core length, turbulent intensity, decay and spread rates, and mean velocity profiles in the transverse direction are studied and compared with the free jet case.