TY - GEN
T1 - The accuracy of reconstruction techniques for determining hybrid rocket fuel regression rate
AU - Saito, Yuji
AU - Kamps, Landon
AU - Komizu, Kodai
AU - Soeda, Kentaro
AU - Bianchi, Daniele
AU - Nasuti, Francesco
AU - Nagata, Harunori
N1 - Funding Information:
This research is supported by Grant-in-Aid for JSPS Fellows 17J00916 and Grant-in-Aid for Scientific Research (C) 17K06943. This work is partially supported by the Center of Innovation Program from Japan Science and Technology Agency, JST.
Publisher Copyright:
© 2018, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2018
Y1 - 2018
N2 - This study is an investigation of the accuracy of reconstruction techniques for determining instantaneous fuel regression rate. Results of reconstruction techniques are compared with results obtained through the measurement of the pressure drop across the fuel in an Axial-Injection End-Burning hybrid rocket (EBHR). The results of numerous firing tests show that this method allows for the evaluation of the accuracy of the instantaneous fuel regression rates obtained by reconstruction techniques. The error bias of O/F values calculated by the reconstruction techniques were around ±10%, and were mainly caused by uncertainties in the measured values of oxidizer mass flowrate and the definition of firing duration. The instantaneous length of an EBHR-type fuel can be calculated from the measurement of the pressure drop across the fuel. However, the calculated fuel length history obtained by the pressure drop in a port does not coincide with that obtained by the reconstruction technique because of an underestimation in pressure drop.
AB - This study is an investigation of the accuracy of reconstruction techniques for determining instantaneous fuel regression rate. Results of reconstruction techniques are compared with results obtained through the measurement of the pressure drop across the fuel in an Axial-Injection End-Burning hybrid rocket (EBHR). The results of numerous firing tests show that this method allows for the evaluation of the accuracy of the instantaneous fuel regression rates obtained by reconstruction techniques. The error bias of O/F values calculated by the reconstruction techniques were around ±10%, and were mainly caused by uncertainties in the measured values of oxidizer mass flowrate and the definition of firing duration. The instantaneous length of an EBHR-type fuel can be calculated from the measurement of the pressure drop across the fuel. However, the calculated fuel length history obtained by the pressure drop in a port does not coincide with that obtained by the reconstruction technique because of an underestimation in pressure drop.
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U2 - 10.2514/6.2018-4923
DO - 10.2514/6.2018-4923
M3 - Conference contribution
AN - SCOPUS:85066486201
SN - 9781624105708
T3 - 2018 Joint Propulsion Conference
BT - 2018 Joint Propulsion Conference
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - 54th AIAA/SAE/ASEE Joint Propulsion Conference, 2018
Y2 - 9 July 2018 through 11 July 2018
ER -