Results 131 to 140 of about 2,946 (146)

To the question of profiling of the LPRE nozzle

Herald of Aeroenginebuilding, 2019
На основе результатов проведенных исследований определено характер распределения термогазодинамических параметров по длине камеры ракетного двигателя. Показано, что распределение скорости газового потока по оси сопла может быть представлено в виде асимметричного сигмоида. Предлагается метод профилирования сопла на основе распределения скорости газового
Abdullayev, P, Samedov, A
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AN OVERVIEW ON THE DESIGN VARIANTS FOR ORGANIZATION OF THE LIQUID FILM COOLING IN LPRE COMBUSTION CHAMBERS

Journal of Rocket-Space Technology, 2023
Abstract. New technologies always create a trend to modernize and improve existing designs with new opportunities. At present, additive technologies have one of the most significant development rates among other manufacturing technologies. For modern liquid-propellant rocket engines, there is also a general trend towards increasing the efficiency of ...
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THE APPLICATION OF THE EXTENDED CELLS METHOD TO SIMULATE THE FLOW OF COMBUSTION GASES IN THE LPRE CHAMBER

Journal of Rocket-Space Technology, 2023
Abstract. The numerical modeling of the process of two-dimensional axisymmetric flow of combustion gases in the chamber of a liquid rocket engine is considered in this study. In general, when solving such problems, meshes are used which lines coincide with the boundaries of the computational domain.
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Efficient variable selection for high-dimensional multiplicative models: a novel LPRE-based approach

Statistical Papers
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yinjun Chen, Hao Ming, Hu Yang
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Experimental Investigation of start-up sequence of a small LPRE

AIAA Propulsion and Energy 2021 Forum, 2021
Ahmed A. Elnaggar, Hatem M. Belal, Ahmed Farid Ayad Hassan, Mohamed A. Al-Sanabawy   +3 more
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DETERMINATION OF THE SURFACE TEMPERATURE OF THE FINS IN COOLING CHANNELS OF LPRE CHAMBERS

System design and analysis of aerospace technique characteristics
This study focuses on heat transfer processes in the fins of cooling ducts used in liquid propellant rocket engines. Accurately determining the finning efficiency is a crucial step in cooling system analysis and requires appropriate and precise methods. However, existing approaches to calculating finning efficiency are based on certain assumptions that
V. V. Sliusariev, V. L. Bucharskyi
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DEVELOPMENT OF A DIFFERENTIAL MODEL FOR COOLING AN LPRE CHAMBER BY AN INCOMPRESSIBLE FLUID

Journal of Rocket-Space Technology
Abstract. The combustion chamber constitutes a crucial component of a liquid rocket engine (LPRE), and approximately 30% of serial engine failures are attributed to issues within it. Primarily, challenges encountered during engine chamber operation stem from the inadequacy of the current cooling systems to manage thermal loads effectively. These loads,
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LPRE criterion based estimating equation approaches for the error-in-covariables multiplicative regression models

Statistica Sinica, 2020
Qihua Wang, Dahai Hu
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Testing Procedure for Laboratory Scale Semi Cryogenic Combustion Chamber of LPRE with Problems Faced and Lessons Learned

Journal of Thermal Science, 2022
Taj Wali Khan, Ihtzaz Qamar
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Thermal emission characteristics of combustion products from rocket engines. Part 1. Investigating the nature and level of emission for model LPRE and SPRE

Thermophysics and Aeromechanics, 2022
V. A. Kuzmin, I. A. Zagrai, N. A. Shmakova   +2 more
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