Results 11 to 20 of about 42,190 (235)

Development of Ultra-Low Specific Speed Centrifugal Pumps Design Method for Small Liquid Rocket Engines

open access: yesAerospace, 2022
With the growth of the satellite industry, the demand for a propulsion system for small launch vehicles and spacecraft has increased. Small liquid rocket engines may require Ultra-Low specific speed centrifugal pumps due to the low required thrust and ...
Hye In Kim   +3 more
doaj   +2 more sources

Review on film cooling of liquid rocket engines

open access: yesPropulsion and Power Research, 2018
Film cooling in combination with regenerative cooling is presently considered as an efficient method to guarantee safe operation of liquid rocket engines having higher heat flux densities for long duration.
S.R. Shine, S.Shri Nidhi
doaj   +2 more sources

Thermal–Mechanical FEM Analyses of a Liquid Rocket Engines Thrust Chamber

open access: yesApplied Sciences, 2022
The Italian Ministry of University and Research (MIUR) funded the HYPROB Program to develop regeneratively cooled liquid rocket engines. In this type of engine, liquid propellant oxygen–methane is used, allowing us to reach very good performances in ...
Michele Ferraiuolo   +3 more
doaj   +2 more sources

The Influence of Thrust Chamber Structure Parameters on Regenerative Cooling Effect with Hydrogen Peroxide as Coolant in Liquid Rocket Engines

open access: yesAerospace, 2023
Liquid rocket engines with hydrogen peroxide and kerosene have the advantages of high density specific impulse, high reliability, and no ignition system.
Chuang Zhou   +6 more
semanticscholar   +1 more source

Fault Detection and Diagnosis for Liquid Rocket Engines Based on Long Short-Term Memory and Generative Adversarial Networks

open access: yesAerospace, 2022
The development of health monitoring technology for liquid rocket engines (LREs) can effectively improve the safety and reliability of launch vehicles, which has important theoretical and engineering significance.
Lingzhi Deng, Y. Cheng, Yehui Shi
semanticscholar   +1 more source

Investigations on an All-Oxide Ceramic Composites Based on Al2O3 Fibres and Alumina–Zirconia Matrix for Application in Liquid Rocket Engines

open access: yesAerospace, 2022
High performance ceramics, particularly Ceramic Matrix Composite (CMC) materials found their way into liquid rocket engines. Yet, so far, mainly carbide or nonoxide CMCs have been of interest.
C. Bach   +2 more
semanticscholar   +1 more source

A Reinforcement Learning Approach for Transient Control of Liquid Rocket Engines [PDF]

open access: yesIEEE Transactions on Aerospace and Electronic Systems, 2020
Nowadays, liquid rocket engines use closed-loop control at most near-steady operating conditions. The control of the transient phases is traditionally performed in open loop due to highly nonlinear system dynamics.
Günther Waxenegger-Wilfing   +3 more
semanticscholar   +1 more source

Comparison of Optimization Techniques and Objective Functions Using Gas Generator and Staged Combustion LPRE Cycles

open access: yesApplied Sciences, 2022
This paper compares various optimization techniques and objective functions to obtain optimum rocket engine performances. This research proposes a modular optimization framework that provides an optimum design for Gas Generator (GG) and Staged Combustion
Suniya Sadullah Khan   +5 more
doaj   +1 more source

Optimizing the Cooling System of an LH2/LOX Rocket Engine using the Bees Algorithm [PDF]

open access: yesمکانیک هوافضا, 2023
Upgrading the thermal efficiency of the cooling system of liquid rocket engines is one of the most significant and intricate problems in designing modern rocket engines in the missile industry.
Navid Bozorgan
doaj  

Numerical Simulation of Chemical Propulsion Systems: Survey and Fundamental Mathematical Modeling Approach

open access: yesAerospace, 2023
This study deals with the mathematical modeling and numerical simulation of chemical propulsion systems (CPSs). For this, we investigate and summarize a comprehensive collection of the simulation modeling developments of CPSs in academic works ...
Jihyoung Cha
doaj   +1 more source

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