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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN Печать: 2150-766X
ISSN Онлайн: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v5.i1-6.180
pages 161-169

PARAMETRIC INVESTIGATION ON SIMILARITY AND SCALE EFFECTS IN HYBRID MOTORS

R. D. Swami
Faculty of Aerospace Engineering, Technion-Israel Institute of Technology Haifa 32000, Israel
Alon Gany
Sylvia and David IA Fine Rocket Propulsion Center and the Aerothermodynamics Lab, Faculty of Aerospace Engineering, Technion – Israel Institute of Technology, Haifa, 3200003, Israel

Краткое описание

Similarity analysis reported for hybrid rocket motors has indicated that in order to correctly interpret the experimental results and extrapolate them to different-scale systems, the main operating conditions to be maintained are: geometric similarity, same oxidizer and fuel combination, and scaling of the oxidizer flow rate in proportion to the motor port diameter. An experimental investigation has been conducted on polymethylmethacrylate/gaseous oxygen hybrid rocket system to verify the reported analysis. The results of the experiments have demonstrated fairly good agreement between the theoretical prediction and the experimental results of key operating parameters, such as fuel regression rate, and thrust, verifying the reported similarity model and its resulting scaling rules.


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