Results 81 to 90 of about 21,745 (234)

Analytical, circle-to-circle low-thrust transfer trajectories with plane change [PDF]

, 2013
Orbit averaging techniques are used to develop analytical approximations of circle-to-circle low-thrust trajectory transfers with plane-change about the Sun.
Macdonald, Malcolm, Malcolm Macdonald
core   +1 more source

3D printed hybrid rocket fuels with μAl core-shell particles coated with polyvinylidene fluoride and polydopamine: Enhanced combustion characteristics

Defence Technology
3D printing technology enhances the combustion characteristics of hybrid rocket fuels by enabling complex geometries. However, improvements in regression rates and energy properties of monotonous 3D printed fuels have been limited.
Qihang Chen, Xiaolong Fu, Weitao Yang, Suhang Chen, Zhiming Guo, Rui Hu, Huijie Zhang, Lianpeng Cui, Xu Xia   +8 more
doaj   +1 more source

HYBRID ROCKET ENGINE TEST FACILITY DESIGN

Havacılık ve Uzay Teknolojileri Dergisi, 2016
Hybrid rocket engines is relatively less researched subject of chemical rockets. Using fuel and oxidizer in different phases hybrids are safe and cheap. Yet, they are not generating enogh thrust to deliver heavy payloads to edge of space.
Ali Emre Samur, Abdurrahman Hacıoğlu, Arif Karabeyoğlu   +2 more
doaj  

Rocket propulsion

, 2019
"This text is intended to provide undergraduate and first year graduate students with an introduction to the principles governing the design and performance of rocket propulsion systems.
Cassady, R. Joseph, Pourpoint, Timothée L., Heister, Stephen D., Anderson, William E.   +3 more
core  

Experimental Investigation on a Throttleable Pintle-Centrifugal Injector

Applied Sciences
This paper presents the design and experimental evaluation of a throttleable pintle-centrifugal injector system tailored for hybrid rocket engines, aimed at improving combustion efficiency and enabling precise throttling control.
Tianwen Li, Nanjia Yu, Zeng Zhao, Yaming Zhao   +3 more
doaj   +1 more source

Hybrid Rocket Motor Scaling Process

, 2015
Hybrid rocket propulsion technology shows promise for the next generation of sounding rockets and small launch vehicles. This paper seeks to provide details on the process of developing hybrid propulsion systems to the academic and amateur rocket ...
Vanherweg, Joseph B. R.
core   +1 more source

Feedback stabilization of displaced periodic orbits : Application to binary asteroid

, 2012
This paper investigates displaced periodic orbits at linear order in the circular restricted Earth-Moon system (CRTBP), where the third massless body utilizes a hybrid of solar sail and a solar electric propulsion (SEP).
Simo, Jules, McInnes, Colin
core  

Analysis of advanced cooling strategies for rocket engines conveying ternary hybrid nanofluids with second slip conditions and melting heat transfer

Case Studies in Thermal Engineering
Effective cooling in rocket engines is essential to prevent overheating and ensure efficient performance under extreme operating conditions. This study presents a comprehensive investigation into advanced cooling strategies for rocket engines utilizing ...
Hatem Gasmi, A.M. Obalalu, Umair Khan, Anuar Ishak, Hami Gündoğdu, Nermeen Abdullah, Samia Elattar, Ahmed M. Galal   +7 more
doaj   +1 more source

Theoretical and experimental investigation of a low thrust Paraffin/N2O hybrid rocket

, 2019
Hybrid rocket propulsion can be considered the challenge for new generation space launchers since they demonstrated promising performance for future space missions by combining high performance, throttleability and stop-restart capabilities. However, the
Ingenito A., Srivastava S., R. Andriani, S. Srivastava, Andriani R., Ingenito Antonella   +5 more
core   +1 more source

Approaches to Low Fuel Regression Rate in Hybrid Rocket Engines

International Journal of Aerospace Engineering, 2012
Hybrid rocket engines are promising propulsion systems which present appealing features such as safety, low cost, and environmental friendliness. On the other hand, certain issues hamper the development hoped for.
Dario Pastrone
doaj   +1 more source