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Abstract <p>Numerical simulation of flows of an inviscid chemically active hydrogen–air mixture with overcompressed detonation wave in the quasi-two-dimensional and two-dimensional formulations is carried out. Simulation is carried out by integrating Euler’s equations supplemented with the equations of physico-chemical kinetics of hydrogen combustion in air with 18 chemical reactions in a&#xa0;9-component mixture. In the quasi-two-dimensional formulation, steady-state flows with overcompressed detonation wave are obtained for various values of the excess air coefficient. In the two-dimensional formulation, a solution with overcompressed detonation wave is obtained and the effect of mixture inhomogeneity on the flow with formation of a detonation wave and its cellular structure is studied.</p>

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Flows with an Overcompressed Detonation Wave in Variable-Area Channels

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • V. G. Aleksandrov,
  • A. D. Egoryan,
  • I. A. Filatov

摘要

Abstract

Numerical simulation of flows of an inviscid chemically active hydrogen–air mixture with overcompressed detonation wave in the quasi-two-dimensional and two-dimensional formulations is carried out. Simulation is carried out by integrating Euler’s equations supplemented with the equations of physico-chemical kinetics of hydrogen combustion in air with 18 chemical reactions in a 9-component mixture. In the quasi-two-dimensional formulation, steady-state flows with overcompressed detonation wave are obtained for various values of the excess air coefficient. In the two-dimensional formulation, a solution with overcompressed detonation wave is obtained and the effect of mixture inhomogeneity on the flow with formation of a detonation wave and its cellular structure is studied.