Results 21 to 30 of about 15,244 (236)
A Coupled Heat Transfer Calculation Strategy for Composite Cooling Liquid Rocket Engine
Aerospace, 2023 To better understand the characteristics of coupled heat transfer in liquid rocket engines, a calculation scheme is proposed in this paper. This scheme can simulate the coupled heat transfer processes, including combustion and flow in the thrust chamber,
Bo Xu +4 more
doaj +1 more source
Low-thrust liquid-propellant rocket engines as part of advanced ultralight rocket vehicle systems
Космические аппараты и технологии, 2021 This work examines the most promising design solutions for the creation of propulsion systems for ultra-light launch vehicles by small private enterprises in the rocket and space industry.
T. A. Basharina +4 more
doaj +1 more source
Aerospace, 2023 This study presents an optimal design approach of a pintle injector for a deep throttlable liquid-propellant rocket engine (LPRE). Even though the pintle injector is used in rocket engines, it has become more important since reusable launch vehicles ...
Jihyoung Cha +2 more
doaj +1 more source
Effect of Secondary Combustion on Thrust Regulation of Gas Generator Cycle Rocket Engine
Applied Sciences, 2022 Thrust regulation is applied to maintain the performance of the liquid propellant rocket engine. The thrust level of a rocket engine can be readily controlled by adjusting the number of propellants introduced into the combustion chamber. In this study, a
Sohaib Khan +4 more
doaj +1 more source
Experimental Study on the Mass Flow Rate of the Self-Pressurizing Propellants in the Rocket Injector
Aerospace, 2021 High vapor pressure propellants such as nitrous oxide are widely used in experimental hybrid and liquid rockets as they can be used in a self-pressurization mode, eliminating the need for external pressurization or pumps and simplifying the design of the
Tomasz Palacz, Jacek Cieślik
doaj +1 more source
Attitude and propellant flow control system and method Patent [PDF]
, 1962 Attitude and propellant flow control system for liquid propellant rocket ...
Escher, W. J. D.
core +1 more source
Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots
Advanced Robotics Research, EarlyView.This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou +4 more
wiley +1 more source
Advanced Science, EarlyView.Inspired by nature's competitive maneuvers, this study introduces a combustion‐driven soft actuator that powers a multi‐modal “Jump‐and‐Fly Catbot” (JFC). With millisecond response, high‐force output (over 70 times its weight) and precise control (error within 5%), the robot can jump, fly, hover, and escape from challenging environments, achieving ...
Hongkuan Ma +4 more
wiley +1 more source
Study on the Mechanical Properties of Solid Composite Propellant Used as a Gas Generator
Journal of Aerospace Technology and Management, 2020 A gas generating propellants are used as initiators of liquid rocket propellants turbopumps and have as desired characteristic a high-volume production of low-temperature gas.
Lia Junqueira Pimont +4 more
doaj
In Situ Methanation on Mars: A Process Concept Study on the Impact of H2/CO2 and Recycle Ratio
Chemie Ingenieur Technik, EarlyView.The rocket propellant methane can be produced on Mars by in situ resource utilization. The H2/CO2 ratio is decisive, and excess H2 is favored for providing sufficient propellant purity. The operation mode—with or without recycling of unreacted reactants—depends on the resource availability of the selected landing site. Abstract For return missions from
Franz Braun +4 more
wiley +1 more source