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Abstract <p>The effect of the spacing between two centers of twin nozzles on the propagation of the Mach 0.8 twinjet is studied experimentally. The center-to-center spacings of the twin nozzles studied are equal to 3<i>D</i> and 5<i>D</i> (here, <i>D</i> is the nozzle exit diameter). The twinjets in parallel, inward and outward canting configurations are also studied. The inward and outward canting nozzles with a half angle of interception of 5°, 10°, and 15° are studied. For the inward canting, it is found that the peak Mach number is higher for the inward-canting twinjets than for the parallel and outward-canting twinjets. The&#xa0;interaction of twinjets diminishes with increase in the nozzle spacing.</p>

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Effect of Spacing and Canting on Twinjet Characteristics

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • K. B. V. Satya Prakash,
  • P. Lovaraju,
  • E. Rathakrishnan

摘要

Abstract

The effect of the spacing between two centers of twin nozzles on the propagation of the Mach 0.8 twinjet is studied experimentally. The center-to-center spacings of the twin nozzles studied are equal to 3D and 5D (here, D is the nozzle exit diameter). The twinjets in parallel, inward and outward canting configurations are also studied. The inward and outward canting nozzles with a half angle of interception of 5°, 10°, and 15° are studied. For the inward canting, it is found that the peak Mach number is higher for the inward-canting twinjets than for the parallel and outward-canting twinjets. The interaction of twinjets diminishes with increase in the nozzle spacing.