Modified Regression Rate Formula of PMMA Combustion by a Single Plane Impinging Jet

A modified regression rate formula for the uppermost stage of CAMUI-type hybrid rocket motor is proposed in this study. Assuming a quasi-steady, one-dimensional, an energy balance against a control volume near the fuel surface is considered. Accordingly, the regression rate formula which can calcula...

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Main Authors: Tsuneyoshi Matsuoka, Kyohei Kamei, Yuji Nakamura, Harunori Nagata
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:International Journal of Aerospace Engineering
Online Access:http://dx.doi.org/10.1155/2017/6485757
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author Tsuneyoshi Matsuoka
Kyohei Kamei
Yuji Nakamura
Harunori Nagata
author_facet Tsuneyoshi Matsuoka
Kyohei Kamei
Yuji Nakamura
Harunori Nagata
author_sort Tsuneyoshi Matsuoka
collection DOAJ
description A modified regression rate formula for the uppermost stage of CAMUI-type hybrid rocket motor is proposed in this study. Assuming a quasi-steady, one-dimensional, an energy balance against a control volume near the fuel surface is considered. Accordingly, the regression rate formula which can calculate the local regression rate by the quenching distance between the flame and the regression surface is derived. An experimental setup which simulates the combustion phenomenon involved in the uppermost stage of a CAMUI-type hybrid rocket motor was constructed and the burning tests with various flow velocities and impinging distances were performed. A PMMA slab of 20 mm height, 60 mm width, and 20 mm thickness was chosen as a sample specimen and pure oxygen and O2/N2 mixture (50/50 vol.%) were employed as the oxidizers. The time-averaged regression rate along the fuel surface was measured by a laser displacement sensor. The quenching distance during the combustion event was also identified from the observation. The comparison between the purely experimental and calculated values showed good agreement, although a large systematic error was expected due to the difficulty in accurately identifying the quenching distance.
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institution Kabale University
issn 1687-5966
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language English
publishDate 2017-01-01
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series International Journal of Aerospace Engineering
spelling doaj-art-b5302fb9d2ac4881a4d27ad2de9bf5532025-02-03T05:46:43ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742017-01-01201710.1155/2017/64857576485757Modified Regression Rate Formula of PMMA Combustion by a Single Plane Impinging JetTsuneyoshi Matsuoka0Kyohei Kamei1Yuji Nakamura2Harunori Nagata3Department of Mechanical Engineering, Toyohashi University of Technology, Toyohashi, JapanDepartment of Mechanical Engineering, Toyohashi University of Technology, Toyohashi, JapanDepartment of Mechanical Engineering, Toyohashi University of Technology, Toyohashi, JapanDivision of Mechanical and Space Engineering, Hokkaido University, Sapporo, JapanA modified regression rate formula for the uppermost stage of CAMUI-type hybrid rocket motor is proposed in this study. Assuming a quasi-steady, one-dimensional, an energy balance against a control volume near the fuel surface is considered. Accordingly, the regression rate formula which can calculate the local regression rate by the quenching distance between the flame and the regression surface is derived. An experimental setup which simulates the combustion phenomenon involved in the uppermost stage of a CAMUI-type hybrid rocket motor was constructed and the burning tests with various flow velocities and impinging distances were performed. A PMMA slab of 20 mm height, 60 mm width, and 20 mm thickness was chosen as a sample specimen and pure oxygen and O2/N2 mixture (50/50 vol.%) were employed as the oxidizers. The time-averaged regression rate along the fuel surface was measured by a laser displacement sensor. The quenching distance during the combustion event was also identified from the observation. The comparison between the purely experimental and calculated values showed good agreement, although a large systematic error was expected due to the difficulty in accurately identifying the quenching distance.http://dx.doi.org/10.1155/2017/6485757
spellingShingle Tsuneyoshi Matsuoka
Kyohei Kamei
Yuji Nakamura
Harunori Nagata
Modified Regression Rate Formula of PMMA Combustion by a Single Plane Impinging Jet
International Journal of Aerospace Engineering
title Modified Regression Rate Formula of PMMA Combustion by a Single Plane Impinging Jet
title_full Modified Regression Rate Formula of PMMA Combustion by a Single Plane Impinging Jet
title_fullStr Modified Regression Rate Formula of PMMA Combustion by a Single Plane Impinging Jet
title_full_unstemmed Modified Regression Rate Formula of PMMA Combustion by a Single Plane Impinging Jet
title_short Modified Regression Rate Formula of PMMA Combustion by a Single Plane Impinging Jet
title_sort modified regression rate formula of pmma combustion by a single plane impinging jet
url http://dx.doi.org/10.1155/2017/6485757
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AT yujinakamura modifiedregressionrateformulaofpmmacombustionbyasingleplaneimpingingjet
AT harunorinagata modifiedregressionrateformulaofpmmacombustionbyasingleplaneimpingingjet