Results 191 to 200 of about 11,282 (264)

Stochastic modelling of transverse wave instability in a liquid-propellant rocket engine

Journal of Fluid Mechanics, 2014
The combustion stability of a liquid-propellant rocket engine experiencing a random, finite perturbation from steady-state conditions is examined. The probability is estimated for a nonlinear resonant limit-cycle oscillation to be triggered by a random ...
P. Popov, Athanasios Sideris, W. Sirignano   +2 more
semanticscholar   +1 more source

Fundamental Concepts on Liquid-Propellant Rocket Engines

2020
The engine of a rocket vehicle is a machine which produces thrust by accelerating a gas flowing through the machine. The reaction to this acceleration is the force which drives the vehicle. The amount of thrust generated depends on the mass flow rate of the gas moving through the engine and on the exit velocity of the gas from the nozzle. The gas flow,
openaire   +1 more source

Analysis of liquid rocket propellant engine exhaust plumes

5th Thermophysics Conference, 1970
Liquid rocket propellant engine exhaust plume flow field, discussing mathematical models for combustion chamber, throat region and ...
T. GREENWOOD, R. PROZAN, A. RATLIFF, D. SEYMOUR   +3 more
openaire   +1 more source

Method for Predicting the Stability Limit to Acoustic Oscillations in Liquid-Propellant Rocket Engine Combustion Chambers Based on Combustion Noise

Combustion, explosion, and shock waves, 2021
V. I. Biryukov, V. Ivanov, R. A. Tsarapkin   +2 more
semanticscholar   +1 more source

FLAME-PILOTING MECHANISMS IN LIQUID PROPELLANT ROCKET ENGINES

1966
Abstract : A program was directed toward the systematic investigation of flame- piloting mechanisms in liquid rocket engines and their role in combustion instability. The mechanism which gained the most attention was recirculation. The program included experimental analysis of rocket engine performance as affected by external disturbances, minor ...
E. Karl Bastress, Aubrey C. Tobey
openaire   +1 more source

Thrust Throttling of Large Liquid Propellant Rocket Engines

The Journal of the Royal Aeronautical Society, 1964
SummaryThe paper concerns rocket engines of the type currently employed in ballistic missiles and satellite booster vehicles, outlining some advantages to be gained from a reduction in thrust towards the end of the burning period. Several methods of throttling a rocket engine are then examined.Low frequency combustion instability which can arise when ...
openaire   +1 more source

Rocket Classifications, Liquid Propellant Rockets, Engine Selection, and Heat Transfer

1968
In a broad sense, propulsion is the act of changing the motion of a body. Propulsion mechanisms provide forces which move bodies that are initially at rest, change a constant velocity motion, or overcome retarding forces when a body is propelled through a medium.
openaire   +1 more source

Simulation of a Liquid-Propellant Rocket Engine Subsystem

2010
From an engineering point of view, CFD is a tool for preliminary design, design improvement, risk analysis, mission planning and operations. In this chapter, we will present engineering aspects of CFD through a task where CFD has played a significant role in accomplishing the goal of a real mission.
Dochan Kwak, Cetin C. Kiris
openaire   +1 more source

Liquid-propellant rocket engines health-monitoring—a survey

Acta Astronautica, 2005
Abstract This paper is intended to give a summary on the health-monitoring technology, which is one of the key technologies both for improving and enhancing the reliability and safety of current rocket engines and for developing new-generation high reliable reusable rocket engines.
openaire   +1 more source

Loxodon-1: Bi-Propellant Liquid Rocket Engine

ASCEND 2023, 2023
Adriana M. Bonilla Romacho, Penelope Nieves, Giovanni Oliveras, Pedro Soler, Luis Rios, Jose Colon, John Bonilla   +6 more
openaire   +1 more source