Journal ArticleDOI
Design Procedure of a Movable Pintle Injector for Liquid Rocket Engines
TLDR
In this paper, a pintle injector was used for developing throttleable rocket engines, where variable-area injectors are suitable choices for developing a rocket engine because it is difficult to efficiently control thrust when fixed-area injectionors are used.Abstract:
Variable-area injectors are suitable choices for developing throttleable rocket engines because it is difficult to efficiently control thrust when fixed-area injectors are used. A pintle injector i...read more
Citations
More filters
Journal ArticleDOI
On the prediction of spray angle of liquid-liquid pintle injectors
TL;DR: In this article, a spray angle formula was deduced from the continuity and momentum equations based on a control volume analysis and validated by numerical and experimental data, showing that both geometric and injection parameters affect the total momentum ratio (TMR) and then influence the spray angle formed by liquid-liquid pintle injectors.
Journal ArticleDOI
Effect of injection conditions on mixing performance of pintle injector for liquid rocket engines
TL;DR: In this paper, the effect of mass flow rate of liquid, gas and pintle opening distance on the mixing performance of liquid rocket engines was studied by using Lagrangian approach to simulate this, and the results showed that the mixing quality, spray angle and dispersion angle are not changed largely after N K ǫ = 0.83.
Journal ArticleDOI
Flow characteristics of a pintle injector element
TL;DR: In this paper, a spray angle model was proposed based on the previous work, and then a model on the discharge coefficient of the orifice was also derived, which was found that the spray angle and discharge coefficient are dominated by the local momentum ratio.
Journal ArticleDOI
Numerical investigation of flame appearance and heat flux and in a deep-throttling variable thrust rocket engine
TL;DR: In this article, the effects of total mass flow-rate, kerosene droplet injection velocity and kerosenes droplet size distribution on flame appearance and heat flux distribution of the combustor are studied in detail.
Journal ArticleDOI
Effects of skip distance on the spray characteristics of a pintle injector
Suji Lee,Jaye Koo,Youngbin Yoon +2 more
TL;DR: In this paper, the authors investigated the influence of the critical parameters on the injector performance, such as the skip distance and the throttling level, on the spray characteristics of pintle injectors.
References
More filters
Journal ArticleDOI
Surface tension and the principle of corresponding states
James R. Brock,R. Byron Bird +1 more
TL;DR: In this paper, the surface-tension curves of pure substances have been correlated successfully by the use of two recent modifications of the principle of corresponding states, and the results are expressed in terms of simple analytical relations which allow one to calculate the surface tension curves either from the critical constants Pc, Vc, and Tc or from Pc and the boiling point Tb.
Proceedings ArticleDOI
TRW Pintle Engine Heritage and Performance Characteristics
Gordon A. Dressler,J. Bauer +1 more
TL;DR: Pintle Injectors have been used extensively in the development of a variety of different types of rocket engines, such as the Pintle-Injector Engine (PIE) as discussed by the authors, which employs a series of separate propellant injection orifices distributed across the diameter of the head end of the combustion chamber.
Journal ArticleDOI
Liquid-propellant rocket engine throttling: A comprehensive review
TL;DR: A detailed survey of liquid-propellant rocket engine throttling can be found in this paper, where several methods of throttling are discussed, including high pressure drop systems, dual-injector manifolds, gas injection, multiple chambers, pulse modulation, throat throttling, movable injector components, and hydrodynamically dissipative injectors.
Journal ArticleDOI
Non-equilibrium diffusion combustion of a fuel droplet
TL;DR: In this paper, a mathematical model for non-equilibrium combustion of droplets in rocket engines is developed, which allows to determine the divergence of combustion rate for the equilibrium and nonequilibrium model.
Related Papers (5)
On the prediction of spray angle of liquid-liquid pintle injectors
Study on atomization and combustion characteristics of LOX/methane pintle injectors
Xin-xin Fang,Chi-bing Shen +1 more