Response mechanisms in axial-injection end-burning hybrid rockets

Yuji Saito; Ayumu Tsuji; Ai Yamada; Harunori Nagata

doi:10.2514/6.2019-3918

Response mechanisms in axial-injection end-burning hybrid rockets

Yuji Saito, Ayumu Tsuji, Ai Yamada, Harunori Nagata

ENG - Aerospace Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

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.

Original language	English
Title of host publication	AIAA Propulsion and Energy Forum and Exposition, 2019
Publisher	American Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)	9781624105906
DOIs	https://doi.org/10.2514/6.2019-3918
Publication status	Published - 2019
Event	AIAA Propulsion and Energy Forum and Exposition, 2019 - Indianapolis, United States Duration: 2019 Aug 19 → 2019 Aug 22

Publication series

Name	AIAA Propulsion and Energy Forum and Exposition, 2019

Conference

Conference	AIAA Propulsion and Energy Forum and Exposition, 2019
Country	United States
City	Indianapolis
Period	19/8/19 → 19/8/22

ASJC Scopus subject areas

Energy(all)
Aerospace Engineering
Electrical and Electronic Engineering
Control and Systems Engineering
Mechanical Engineering

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Response mechanisms in axial-injection end-burning hybrid rockets. / Saito, Yuji; Tsuji, Ayumu; Yamada, Ai; Nagata, Harunori.

AIAA Propulsion and Energy Forum and Exposition, 2019. American Institute of Aeronautics and Astronautics Inc, AIAA, 2019. (AIAA Propulsion and Energy Forum and Exposition, 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Saito, Y, Tsuji, A, Yamada, A & Nagata, H 2019, Response mechanisms in axial-injection end-burning hybrid rockets. in AIAA Propulsion and Energy Forum and Exposition, 2019. AIAA Propulsion and Energy Forum and Exposition, 2019, American Institute of Aeronautics and Astronautics Inc, AIAA, AIAA Propulsion and Energy Forum and Exposition, 2019, Indianapolis, United States, 19/8/19. https://doi.org/10.2514/6.2019-3918

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abstract = "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.",

author = "Yuji Saito and Ayumu Tsuji and Ai Yamada and Harunori Nagata",

note = "Publisher Copyright: {\textcopyright} 2019, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.; AIAA Propulsion and Energy Forum and Exposition, 2019 ; Conference date: 19-08-2019 Through 22-08-2019",

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