Results 41 to 50 of about 32,742 (216)

Development and testing of an additively manufactured monolithic catalyst bed for HTP thruster applications [PDF]

open access: yes, 2016
Additive manufacturing (AM), also known as 3D printing, is a revolutionary manufacturing technology that has attracted many industries in the past two decades.
Adkins, N.J.   +7 more
core   +2 more sources

Numerical Simulation of Interaction between Hall Thruster CEX Ions and SMART‐1 Spacecraft

open access: yesMathematical Problems in Engineering, Volume 2015, Issue 1, 2015., 2015
The interaction between the plume of Hall thruster and the surface of the SMART‐1 spacecraft is investigated by developing a three‐dimensional IFE‐PIC‐MCC code, with the emphasis on the effect of the disturbance force and thermal loading caused by charge exchange ions (CEX) impingement on the surface of the spacecraft.
Kang Shan   +5 more
wiley   +1 more source

Multidisciplinary Conceptual Design Optimization of Monopropellant Propulsion System of Nanosatellite [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2011
This paper presents the multidisciplinary design optimization of monopropellant propulsion system of the nanosatellite for planner maneuver. Mass, configuration and internal ballistic equations are derived for any part of propulsion system (thruster ...
M. Nosratollahi, A. h. Adami-Dehkordi
doaj  

Optimization of 10 N Monopropellant High Test Peroxide Thruster for Space Applications

open access: yesJournal of Advanced Research in Fluid Mechanics and Thermal Sciences, 2022
Monopropellant thruster is one of the most propulsion system types developed in the space industry. This system uses a single type of propellant that reacts in porous medium catalytic packed bed to generate thrust in the form of hot gases.
Fadela Benzenine   +3 more
semanticscholar   +1 more source

Thermochemical Analysis of Hypergolic Propellants Based on Triethylaluminum/Nitrous Oxide

open access: yesInternational Journal of Aerospace Engineering, Volume 2014, Issue 1, 2014., 2014
The vacuum specific impulse, density vacuum specific impulse, and solid exhaust products were examined for several propellant formulations based on the pyrophoric material triethylaluminum (TEA) using CEA thermodynamics code. Evaluation of TEA neat and mixed with hydrocarbon fuels with LOX, N2O, N2O4, liquefied air, and HNO3 were performed at ...
Stephen M. Davis   +2 more
wiley   +1 more source

Development of NMP‐001, A Nitromethane‐Based Green Propellant

open access: yesPropellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT This paper discusses the development of a model monopropellant that is aimed at exploring the applicability of nitromethane‐based propellants as an alternative to hydrazine. This approach addresses the challenges faced by HAN‐, ADN‐based propulsion by being more cost‐effective while providing similar performance figures.
Maxim Kurilov   +3 more
wiley   +1 more source

Low thrust monopropellant engine [PDF]

open access: yes, 1981
The engine has a conventional body and nozzle configuration. The monopropellant fuel is fed into the thruster with dual injection tubes via an injector shell with dual spray jets. The spray jets are positioned generally opposed to each other.
Kuenzly, J. D.
core   +1 more source

Advances in Hypergolic Propellants: Ignition, Hydrazine, and Hydrogen Peroxide Research

open access: yesAdvances in Aerospace Engineering, Volume 2014, Issue 1, 2014., 2014
A review of the literature pertaining to hypergolic fuel systems, particularly using hydrazine or its derivatives and hydrogen peroxide, has been conducted. It has been shown that a large effort has been made towards minimizing the risks involved with the use of a toxic propellant such as the hydrazine.
Stephen M. Davis   +2 more
wiley   +1 more source

Stimuli‐Responsive Electrofluidic Nervous System for Autonomous Soft Robots

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 2, February 2026.
A stimuli‐responsive electrofluidic nervous system (SENS) is introduced to achieve sensing, signal processing, and decision‐making using soft materials. Comprising fluidic switches and electroactive actuators, SENS enables multimodal stimuli‐responsiveness and autonomous control in soft robots.
Dip Kumar Saha   +3 more
wiley   +1 more source

Weakly Nonlinear and Numerical Analysis of Auto‐Oscillatory Dynamics in a Solid Propellant Combustion Model

open access: yesInternational Scholarly Research Notices, Volume 2013, Issue 1, 2013., 2013
In solid combustion, a planar traveling flame wave may lose stability to oscillatory modes in certain parameter regimes. The loss of stability is commonly achieved through a Hopf bifurcation in which linearly unstable modes grow to fixed amplitudes. This situation has been well studied in models of strictly condensed combustion and has been observed ...
Michael Reardon   +5 more
wiley   +1 more source

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