@inproceedings{
 title = {Performance of an sfrj with an aft-mixing section utilizing bypass air},
 type = {inproceedings},
 year = {2021},
 pages = {1-10},
 websites = {https://arc.aiaa.org/doi/10.2514/6.2021-1876},
 publisher = {AIAA Paper 2021-1876},
 id = {72e15ff3-4c7c-3717-aaa3-a099764afb03},
 created = {2022-09-14T18:36:51.752Z},
 accessed = {2022-09-14},
 file_attached = {true},
 profile_id = {6476e386-2170-33cc-8f65-4c12ee0052f0},
 group_id = {5a9f751c-3662-3c8e-b55d-a8b85890ce20},
 last_modified = {2022-09-14T18:36:52.335Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {false},
 hidden = {false},
 citation_key = {evans:scitech:2021},
 private_publication = {false},
 abstract = {The effect of secondary injection of air downstream of the combustor of a model solid-fuel ramjet (SFRJ) combustor on its global performance is studied. The SFRJ is operated with heated non-vitiated air (2 = 387-727 °F, = 2.31-3.81 lbm/s) and cylindrical, center-perforated HTPB fuel grains. The secondary air bypass ratio is varied from 0-30%. For comparable operating conditions, the use of the aft-mixing section (AMS) resulted in an improvement in combustion efficiency from ∼85% to ∼95% and increase in from ∼110 s to ∼130 s. The bypass air was introduced into the AMS using circumferential jet injection at momentum flux ratios of 3-3.5 and 20. For comparable operating conditions, the = 20 cases had a slightly lower combustion efficiency than the = 3-3.5 cases. The jet trajectory and heat-release in the AMS were characterized using broadband chemiluminescence performed at 6 kHz and CH* chemiluminescence performed at 50 kHz.},
 bibtype = {inproceedings},
 author = {Evans, Jay V. and Senior, William C.B. and Gejji, Rohan M. and Strahan, Nicholas L. and Slabaugh, Carson D.},
 doi = {10.2514/6.2021-1876},
 booktitle = {AIAA Scitech 2021 Forum}
}

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