Results 21 to 30 of about 72,527 (347)

Influence of the Ignition Method on the Characteristics of Propellant Burning in the Context of the Geometric Burning Model

open access: yesEnergies, 2023
Mathematical models for the simulation of the operation of various projectile-throwing systems are continuously modified, simultaneously with the development of propellants.
Zbigniew Leciejewski   +2 more
doaj   +1 more source

Proizvodnja piropatrona i raketnih motora pilotskih sedišta / Production of cartridges and eject seat rocket motors

open access: yesVojnotehnički Glasnik, 2006
Ovaj rad sadrži opis uspešnog razvoja i proizvodnje piropatrona, pogonskih punjenja i raketnih motora izbacivih pilotskih sedišta. Opisan je proces razvoja putem kopiranja stranog rešenja i njihovih modifikacija.
Milorad Savković, Danilo Serdarević
doaj   +1 more source

Research on aging behavior and safe storage life prediction of modified double base propellant

open access: yesHigh Temperature Materials and Processes, 2022
In order to study the long-time safe storage performance of GaTo modified double base propellant, the accelerated aging tests at 65, 70, 75, and 85°C were conducted.
Gu Yan   +4 more
doaj   +1 more source

Thermal Decomposition of Ammonium Dinitramide (ADN) as Green Energy Source for Space Propulsion

open access: yesAerospace, 2023
The thermal decomposition of an ammonium dinitramide-based energetic compound was conducted for the first time using a dispersive inductively coupled plasma mass spectrometer, DTA-TG analysis, and pyrolysis at a constant temperature. A liquid droplet was
Zakaria Harimech   +4 more
doaj   +1 more source

The Screw Propeller [PDF]

open access: yesProceedings of the Institution of Automobile Engineers, 1915
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openaire   +3 more sources

Introduction to “Propeller Flaps” [PDF]

open access: yesSeminars in Plastic Surgery, 2020
AbstractThe editors of this issue of Seminars in Plastic Surgery dedicated to propeller flaps met in 2009 at the “1st Tokyo Meeting on Perforator and Propeller Flaps.” On that occasion, as part of the advisory panel of the meeting, they contributed to the definition and classification of these flaps.
Pignatti, M, Hallock, GG
openaire   +4 more sources

CFD Analysis of De Laval Nozzle of a Hybrid Rocket Engine [PDF]

open access: yesE3S Web of Conferences
: The study gives a general overview of the CFD-simulated gas flow via the nozzle of a De Laval rocket engine. In CFD software, the mesh is generated using the nozzle’s geometry.
Ahmad Mohamed Tarmizi   +6 more
doaj   +1 more source

A Study on the Pressure Behavior Inside Propellant Line of Satellite [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2002
One of the way to derive design parameters of the fuel feeding system in satellite propulsion system is to analyze unsteady flow of liquid propellant (hydrazine).
Jin-Chul Choi, Jeong-Soo Kim
doaj   +1 more source

Fenomen erozije cevi naoružanja / Gun barrel erosion

open access: yesVojnotehnički Glasnik, 2009
U radu su prikazana dosadašnja istraživanja erozije cevi. Trošenje cevi je neizbežan proces do kojeg dolazi pri svakom opaljenju. Erozija cevi može se definisati kao progresivna povreda ili oštećenje površine cevi i proširenje kalibra usled opaljenja ...
Slobodan Ilić, Goran Marjanović
doaj   +1 more source

Performances Study of a Hybrid Rocket Engine [PDF]

open access: yesINCAS Bulletin, 2018
This paper presents a study which analyses the functioning and performances optimization of a hybrid rocket engine based on gaseous oxygen and polybutadiene polymer (HTPB).
Adrian-Nicolae BUTURACHE
doaj   +1 more source

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