Results 111 to 120 of about 190,559 (293)

Evaluation of Proposed Rocket Engines for Earth-to-Orbit Vehicles [PDF]

The objective is to evaluate recently analyzed rocket engines for advanced Earth-to-orbit vehicles. The engines evaluated are full-flow staged combustion engines and split expander engines, both at mixture ratios at 6 and above with oxygen and hydrogen ...
Kramer, Richard D., Martin, James A.
core   +1 more source

Neural Network Flame Closure for a Turbulent Combustor with Unsteady Pressure [PDF]

arXiv, 2020
In this paper, neural network (NN)-based models are generated to replace flamelet tables for sub-grid modeling in large-eddy simulations of a single-injector liquid-propellant rocket engine. In the most accurate case, separate NNs for each of the flame variables are designed and tested by comparing the NN output values with the corresponding values in ...
arxiv  

A Survey on Health Monitoring and Management Technology for Liquid Rocket Engines

, 2014
This paper is about a short survey on the recent research activities regarding health monitoring and management for liquid rocket engines. For this, we investigate the precedent techniques developed in advanced space-industry countries which are USA, EU,
Jihyoung Cha, Chulsu Ha, O. Suheon, Sangho Ko   +3 more
semanticscholar   +1 more source

Liquid-hydrogen rocket engine development at Aerojet, 1944 - 1950 [PDF]

This program demonstrated the feasibility of virtually all the components in present-day, high-energy, liquid-rocket engines. Transpiration and film-cooled thrust chambers were successfully operated.
Coplen, H. L., Gordon, R., James, G. S., Osborn, G. H.   +3 more
core   +1 more source

Trade-off analysis of a new liquid rocket engine

, 2019
When high specific impulse and storability are mission requirements, toxic bi-propellant storable couples are very often used. Typically hydrazine or one of its derivatives are used as fuels and nitrogen tetroxide as oxidizer. Maturity of bi-propellant non-toxic alternatives is still low, even though some monopropellant solutions are coming to the ...
Maggi, F., Zuin, D., La Luna, S., Paravan, C., Dotti, M., Galfetti, L.   +5 more
openaire   +3 more sources

AN ANTHOLOGY OF THE DISTINGUISHED ACHIEVEMENTS IN SCIENCE AND TECHNIQUE. PART 51: ROCKET-SPACE TECHNOLOGY DESIGNER SERGEY KOROLEV AND HIS ACCOMPLISHMENTS IN MISSILE DESIGN

Electrical engineering & Electromechanics, 2019
Purpose. Preparation of short scientifically-historical essay about one of founders of domestic rocket production and practical cosmonautics, distinguished Soviet designer of space-rocket technology Sergey Pavlovich Korolev. Methodology. Known scientific
M. I. Baranov
doaj   +1 more source

Handbook of Recommended Practices for the Determination of Liquid Monopropellant Rocket Engine Performance, [PDF]

, 1979
R. A. Bjorklund, R. S. Rogero, R. K. Baerwald   +2 more
openalex   +1 more source

Launch vehicle performance using metallized propellants [PDF]

Metallized propellant propulsion systems are considered as replacements for the solid rocket boosters and liquid sustainer stages on the current launch vehicles: both the Space Transportation System (STS) and the Titan 4.
Palaszewski, Bryan A., Powell, Richard
core   +1 more source

Overview of Combustion Instabilities in Liquid-Propellant Rocket Engines [PDF]

, 1995
N/
Culick, Fred E. C., Yang, Vigor
core  

Low-cost, Lightweight Electronic Flow Regulators for Throttling Liquid Rocket Engines [PDF]

arXiv
For small-scale liquid rockets, pressure-fed systems are commonly favoured due to their simplicity and low weight. In such systems, accurate regulation of both tank and injector pressures over a wide range of upstream pressures is critical $-$ more accurate regulation allows for higher engine efficiency and minimal tank mass, thus improving flight ...
arxiv