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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: 0.28 SNIP: 0.421 CiteScore™: 0.9

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

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International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v3.i1-6.650
pages 662-672

LASER ASSISTED HIGH-SPEED SHUTTER TV CAMERA FOR INVESTIGATIONS ON COMBUSTION OF ALUMINIZED PROPELLANTS

R. Akiba
ISAS - Institute of Space and Astronautical Science, Sagamihara, Japan
Masahiro Kohno
Institute of Space and Astronautical Science, 3-1-1 Yoshinodai Sagamihara, Kanagawa 229, Japan
Angelo Volpi
CNPM- National Research Council, Viale F. Baracca, 69 20068 Peschiera Borromeo, Milano, Italy
T. Shibata
Postgraduate Student, Tokai University, Tokyo, Japan
Shin-Ichiro Tokudome
The Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Japan

Краткое описание

Aluminum particles loaded in composite propellants have a tendency to agglomerate on the burning surface before ignition. The Al agglomerates, ejected by the lift of the gaseous outlet flow, ignite by exposure to the high temperature diffusion flame and can burn even relatively far from the propellant burning surface. A laser-assisted high-speed shutter TV camera diagnostic has been developed and successfully used for Al agglomerate visualization on and in the vicinity of the propellant burning surface. A Nd-YAG laser has been employed to supply UV and visible illumination. Three highly aluminized propellants have been tested in the pressure range 1 to 4 MPa. The images obtained have been qualitatively and quantitatively useful for better comprehension of the Al combustion processes despite the fact that the image resolution is expected to be improved at the highest tested pressure.


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