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June 29, 2026Thermophysics and Aeromechanics0 citations

Numerical simulation of ignition of a hydrogen-air mixture in a flow

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VZV. N. ZudovOSO. A. Shmagunov

Key Points

  • This research aims to understand the processes involved in the ignition of a hydrogen-air mixture in flow environments.
  • Numerical simulation of autoignition in laminar hydrogen jets diluted with nitrogen.
  • Evaluation of the effects of pulse frequency and flow velocity on ignition.
  • Analysis of a transient reacting mixing layer between two flows with varying velocities and temperatures.
  • Ignition is influenced by both pulse frequency and flow velocity.
  • The numerical simulation successfully models the autoignition process in the hydrogen-air mixture.
  • Distinct characteristics of the mixing layer contribute to the combustion dynamics observed.

Abstract

The problem of ignition and combustion of a region expanding over time is considered. Combustion was initiated using a pulsed-periodic energy source. The influence of pulse frequency and flow velocity on ignition was revealed. Autoignition of a laminar hydrogen jet diluted with nitrogen in a co-current heated air flow was numerically simulated. A transient reacting mixing layer between two flows (air and fuel) with different velocities and temperatures was studied.

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Cite This Study

Zudov et al. (2026) studied this question.

synapsesocial.com/papers/6a420adff91bb43ea9192139https://doi.org/10.1134/s0869864325060137
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