Results 61 to 70 of about 13,320 (264)

Three-Dimensional Numerical Analysis of LOX/Kerosene Engine Exhaust Plume Flow Field Characteristics

International Journal of Aerospace Engineering, 2017
Aiming at calculating and studying the flow field characteristics of engine exhaust plume and comparative analyzing the effects of different chemical reaction mechanisms on the engine exhaust plume flow field characteristics, a method considering fully ...
Hong-hua Cai, Wan-sheng Nie, Xin-lei Yang, Rui Wu, Ling-yu Su   +4 more
doaj   +1 more source

Numerical simulation of particle erosion in the internal flow field of solid rocket motor nozzle using Rocstar

AIP Advances, 2022
Solid composite propellants often contain metal particles, such as aluminum particles, and the internal flow field in a solid rocket motor is a typical gas–solid two-phase flow field.
Wei Zhou, Yongqi Yin, Zhensheng Sun, Peiyang Ma, Xueqian Shi   +4 more
doaj   +1 more source

A Critical Review of Limitations and Challenges in Advancement of HNF as a Green Oxidizer for Composite Solid Propellant Formulations

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Hydrazinium nitroformate (HNF) is a chlorine‐free, high‐energy oxidizer with promising applications in green propulsion systems. This review examines the thermal decomposition, combustion kinetics, flame structure, and behavior of HNF, while critically evaluating the current body of literature.
Lakshay Bansal, Prakhar Jindal, Vineet Kumar Rathi   +2 more
wiley   +1 more source

Fluid thrust control system [PDF]

, 1968
A pure fluid thrust control system is described for a pump-fed, regeneratively cooled liquid propellant rocket engine. A proportional fluid amplifier and a bistable fluid amplifier control overshoot in the starting of the engine and take it to a ...
Howell, W. L., Jansen, H. B., Lehmann, E. N.   +2 more
core   +1 more source

Oxide‐Based Ceramic Matrix Composites for High‐Temperature Environments: A Review

Advanced Engineering Materials, Volume 27, Issue 7, April 2025.
This review examines oxide‐based ceramic matrix composites, focusing on their processing, composition, and mechanical properties for high‐temperature applications. Key topics include oxidation resistance, failure mechanisms, and corrosion behavior, with insights into their potential use in aerospace, nuclear power, and other high‐performance industries.
Karthikeyan Ramachandran, Joseph C. Bear, Doni Daniel Jayaseelan   +2 more
wiley   +1 more source

Fabrication process for combustion chamber/nozzle assembly [PDF]

, 2001
An integral, lightweight combustion chamber/nozzle assembly for a rocket engine has a refractory metal shell defining a chamber of generally frusto-conical contour.
Cornelius, Charles S., Myers, W. Neill
core   +1 more source

Impacts of Micro-Deviations of Aperture on the Characteristics of Collision Atomization Field

Applied Sciences, 2022
As the final flow channel of the liquid rocket engine, the manufacturing of impinging atomization nozzles has become a critical link in the manufacture of impinging atomization components. At present, the high-precision machining of millimeter nozzles in
Yarui Ma, Jiwen Cui, Hui Wang, Jiubin Tan   +3 more
doaj   +1 more source

Advancements in liquid marbles as an open microfluidic platform: Rapid formation, robust manipulation, and revolutionary applications

Droplet, Volume 4, Issue 2, April 2025.
A sessile LM‐shaped microdroplet system, featuring by three logical internal layers that represent rapid formation, robust manipulation, and revolutionary applications respectively. Abstract Liquid marbles (LMs) have become a focal point in microfluidics for their efficient manipulation of small liquid volumes.
Tong Tong, Huaiqing Hu, Yuanhao Xie, Jing Jin   +3 more
wiley   +1 more source

Liquid directional transport surface applied to the spacecraft fluid management system: Fundamentals and prospect analysis

Droplet, Volume 4, Issue 2, April 2025.
Based on the analysis of the existing liquid oriented transport surface under gravity, this review analyzes the feasibility of applying the liquid oriented transport surface to the spacecraft fluid management device by summarizing its transport principle and combining with the existing application environment of the spacecraft fluid management device ...
Yifan He, Wenshuai Xu, Kuo Yan, Lingling Zhao, Jun Wang, Kai Li, Jingyuan Liu, Heng Jiang   +7 more
wiley   +1 more source

Applying Energy Dissipation Rate GNSS Accelerometry to a Non‐Circular Orbiting Satellite

Earth and Space Science, Volume 12, Issue 4, April 2025.
Abstract The increase in the number of objects in Low‐Earth Orbit has heightened the demand for high‐accuracy orbital prediction models driven by dependable measurements of thermospheric mass density (TMD). Given the added cost and complexity burden of equipping satellites with high precision accelerometers, recent attention has focused on alternative ...
D. J. Fitzpatrick, R. L. Bishop, M. D. Pilinski, S. E. Palo   +3 more
wiley   +1 more source