Výsledky vyhledávání - "Artur Elias de Morais Bertoldi"

3D Printing Techniques for Paraffin-Based Fuel Grains

Autor: Riccardo Gelain, Artur Elias De Morais Bertoldi, Adrien Hauw, Patrick Hendrick

Publikováno v: Aerotecnica Missili & Spazio. 101:257-266

Hybrid rocket propulsion systems have proved to be a suitable option for some specific applications in the space transportation domain such as in launch vehicle upper stages, orbit transfer spacecrafts, decelerator engines for re-entry capsules, and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a2b5b909598fbc89cac6aab4f8894d87
https://doi.org/10.1007/s42496-022-00126-5

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Experimental and Numerical Study of the Flammability Limits in a CH4/O2 Torch Ignition System

Autor: Jungpyo Lee, Artur Elias De Morais Bertoldi, Domenico Simone, OLEXIY SHYNKARENKO

Publikováno v: Energies; Volume 15; Issue 11; Pages: 3857

The current work is devoted to studying combustion initiation inside the methane-oxygen torch igniter for a hybrid rocket motor. The ignition system can generate a wide range of power and oxidizer-to-fuel ratios. It has a self-cooled vortex combustio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74fa673250b2cf77883f696c77cbcede

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Experimental study of severity level of structural discontinuities in paraffin grains of hybrid propellant rocket

Autor: Domenico Simone, Artem Andrianov, Jungpyo Lee, Artur Elias de Morais Bertoldi, Olexiy Shynkarenko

Publikováno v: Acta Astronautica. 162:256-265

The paper addresses experimental characterization of instant shape of paraffin grain with predefined structural discontinuity in process of combustion and its possible influence on structural integrity of hybrid propellant motor. The one-port paraffi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d02138ee16a1d412a0849035d954385c
https://doi.org/10.1016/j.actaastro.2019.06.015

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Performance comparison of oxidizer injectors in a 1-kN paraffin-fueled hybrid rocket motor

Autor: Michel H. Lefebvre, Patrick Hendrick, Mohammed Bouziane, Praskovia Milova, Artur Elias de Morais Bertoldi

Publikováno v: Aerospace Science and Technology. 89:392-406

To investigate the effects of oxidizer injection on the performance of hybrid rocket motors (HRMs), we have designed, manufactured and tested four types of injector: showerhead (SH), hollow-cone (HC), pressure-swirl (PSW) and vortex (VOR). This study

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dde512129790c34b0004b3d5ae9c448d
https://doi.org/10.1016/j.ast.2019.04.009

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Role of precombustion chamber design in feed-system coupled instabilities of hybrid rockets

Autor: Takakazu Morita, Renato Alves Borges, Carlos Alberto Gurgel Veras, Artur Elias de Morais Bertoldi, Simone Battistini, Patrick Hendrick, Artem Andrianov, Jungpyo Lee

Oxidizer feed-system coupled instabilities have been observed in several liquid and hybrid propellant rocket engines, although they are not likely to be catastrophic for the latter. However, severe pressure oscillation in hybrid rocket may result in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db382fde7245341ce702ebbad0cd8339
https://shura.shu.ac.uk/27601/2/JPPjournal_Jungpyo_final.pdf