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Investigation of the Flow Structure in a Model Scramjet Air Intake with Transverse Hydrogen Fuel Injection into Supersonic Crossflow

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Abstract

Combustion flow inside the channel of a model scramjet air inlet with transverse hydrogen fuel injection from the bottom wall is investigated. The OH-concentration and pressure distributions that replicate qualitatively the flow structure observed in experiments are obtained. Several different mechanisms of formation of shock waves in the investigated experimental facility are distinguished. In analyzing the structure of fuel jet, satisfactory quantitative agreement with the calculation results of other authors is obtained. It is shown that the shock-wave structure affects significantly combustion enhancement.

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ACKNOWLEDGEMENTS

The author wishes to thank S.T. Surzhikov and V.V. Kuznetsov for fruitful discussions and useful remarks.

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Correspondence to R. K. Seleznev.

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Translated by E.A. Pushkar

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Seleznev, R.K. Investigation of the Flow Structure in a Model Scramjet Air Intake with Transverse Hydrogen Fuel Injection into Supersonic Crossflow. Fluid Dyn 56, 334–342 (2021). https://doi.org/10.1134/S0015462821030083

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  • DOI: https://doi.org/10.1134/S0015462821030083

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