TY - GEN
T1 - Response mechanisms in axial-injection end-burning hybrid rockets
AU - Saito, Yuji
AU - Tsuji, Ayumu
AU - Yamada, Ai
AU - Nagata, Harunori
N1 - Publisher Copyright:
© 2019, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2019
Y1 - 2019
N2 - This study is an investigation of the response mechanisms in Axial-Injection End-Burning Hybrid Rockets. A numerical model was developed based on the conservation of mass in the chamber. Since it was not known whether the fuel shape is affected by oxidizer port velocity, several single port firing tests were conducted to confirm the effect of fuel regression shape and ensure the precision of the model. The calculation results show that the slow first-order lag can be explained by the time in which ports merge with one another, and the fast first-order lag can be explained by the unsteady residence time in the chamber. However, there is no hysteresis characteristics in calculation results. Therefore, the hysteresis characteristics are not caused by unsteady residence time in the chamber and port merging combustion.
AB - This study is an investigation of the response mechanisms in Axial-Injection End-Burning Hybrid Rockets. A numerical model was developed based on the conservation of mass in the chamber. Since it was not known whether the fuel shape is affected by oxidizer port velocity, several single port firing tests were conducted to confirm the effect of fuel regression shape and ensure the precision of the model. The calculation results show that the slow first-order lag can be explained by the time in which ports merge with one another, and the fast first-order lag can be explained by the unsteady residence time in the chamber. However, there is no hysteresis characteristics in calculation results. Therefore, the hysteresis characteristics are not caused by unsteady residence time in the chamber and port merging combustion.
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U2 - 10.2514/6.2019-3918
DO - 10.2514/6.2019-3918
M3 - Conference contribution
AN - SCOPUS:85095972297
SN - 9781624105906
T3 - AIAA Propulsion and Energy Forum and Exposition, 2019
BT - AIAA Propulsion and Energy Forum and Exposition, 2019
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - AIAA Propulsion and Energy Forum and Exposition, 2019
Y2 - 19 August 2019 through 22 August 2019
ER -