Jacob SANDRAL, Tristan VANYAI, Anand VEERARAGAVAN, Vincent WHEATLEY

DOI Number: XXX-YYY-ZZZ

Conference number: HiSST2024-00204

Boundary layer combustion (BLC) in scramjet flow paths is often disrupted from strong flow features such as a mainstream injector. Experiments were conducted, investigating the effect a mainstream injector has on boundary layer combustion initiated by a porous plate and multi-porthole injector array (MPIA). Hydrogen was injected at representative flow rates in a 2D ducted flow path to allow for visualization of the flow. High speed schlieren imaging, chemiluminescence and planar laser induced fluorescence measured the flow structure, while thin film heat transfer gauges and pressure gauges characterized the level of combustion. Both the MPIA and porous plate were disrupted along the centerline behind the mainstream injector but were unaffected off axis. The porous plate was able to achieve earlier combustion and had a more uniform layer of fuel.

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In Categories: 1.Events, HiSST 2024, Hypersonic Fundamentals and History
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