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<p>Results of investigation into the influence of a partial flow swirl on the flow structure and heat transfer of equilibrium dissociating nitrogen tetroxide have been presented. Flow turbulization, the growth in the heat flux on the wall, and the rise in the mean flow-rate temperature in flows with a nonuniform feed of the coolant lead to the enhancement of heat transfer and growth in the Nusselt number throughout the region of flow. On the initial portion of flow for one and the same value of the Rossby number, the heat-transfer intensity of partially and fully swirling flows is identical. Away from the swirler, Nusselt numbers at one and the same value of the integral swirl parameter for partially or fully swirling flows become similar.</p>

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Mathematical Modeling of the Enhancement of Heat Transfer of an Equilibrium Dissociating Gas with Partial Flow Swirl at Entry into the Tube

  • 期刊论文

  • 发表日期：

    2026年6月29日

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  • O. V. Matvienko,
  • P. S. Martynov

摘要

Results of investigation into the influence of a partial flow swirl on the flow structure and heat transfer of equilibrium dissociating nitrogen tetroxide have been presented. Flow turbulization, the growth in the heat flux on the wall, and the rise in the mean flow-rate temperature in flows with a nonuniform feed of the coolant lead to the enhancement of heat transfer and growth in the Nusselt number throughout the region of flow. On the initial portion of flow for one and the same value of the Rossby number, the heat-transfer intensity of partially and fully swirling flows is identical. Away from the swirler, Nusselt numbers at one and the same value of the integral swirl parameter for partially or fully swirling flows become similar.