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Numerical investigation of the role of hyper-mixers in supersonic mixing
Published in Royal Aeronautical Society
2010
Volume: 114
   
Issue: 1161
Pages: 659 - 672
Abstract
In this numerical study, the role of hyper-mixers on supersonic mixing is investigated for six different strut configurations. To this end, 3D, compressible, turbulent, non-reacting flow calculations with air as the secondary injectant have been carried out. A qualitative comparison of the predictions with experimental results is made through Schlieren and Mie scattering images. A quantitative evaluation of the predictions is made by comparison with experimentally measured exit stagnation pressure, wall static pressure and the degree of unmixedness. Based on these results, three strut configurations have been selected for carrying out simulations with hydrogen as the injectant. Results from the hydrogen simulations are compared with the predictions using air and also across the strut configurations. The results clearly demonstrate that castellated strut configurations are very effective in enhancing mixing in such high speed flows.
About the journal
JournalAeronautical Journal
PublisherRoyal Aeronautical Society
ISSN00019240
Open AccessYes
Concepts (13)
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    Air
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    Forecasting
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    Mixers (machinery)
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    Mixing
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    HIGH SPEED FLOWS
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    HYDROGEN SIMULATIONS
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    MIE SCATTERING IMAGE
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    NONREACTING FLOW
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    Numerical investigations
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    Quantitative evaluation
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    Stagnation pressures
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    SUPERSONIC MIXING
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    Struts