Results 191 to 200 of about 11,111 (215)
Some of the next articles are maybe not open access.
The physical origins of side loads in rocket nozzles
35th Joint Propulsion Conference and Exhibit, 1999The side loads that typically occur during the start-up and shut-down transients of rocket nozzles are not yet a fully understood phenomenon. Despite the great practical interest to avoid structural problems to the engine, only few clean data are available, because of the difficulties and the high costs of both experimental and numerical tests.
ONOFRI, Marcello, NASUTI, Francesco
openaire +3 more sources
Recent Developments in Rocket Nozzle Configurations
ARS Journal, 1961T THRUST of a rocket engine is primarily dependent upon the momentum imparted to the products of combustion by discharging them through an exhaust nozzle. During their passage through the nozzle, the exhaust gases are continuously accelerated from low subsonic velocities to high supersonic velocities at the nozzle exit. For the purpose of understanding
openaire +2 more sources
Investigation of the infrared characteristics of the rocket nozzle
IEEE Aerospace and Electronic Systems Magazine, 2009Investigation of the infrared characteristics of a rocket nozzle is very important for the study of infrared initiating technology. The Narrow-Band Zone model is developed for that purpose. The spectral transmission and absorption factors are introduced, and the equations between radiative heat flux and the temperature of waill surfaces and gas are ...
Guobiao Cai, Xiaoying Zhang
openaire +2 more sources
Chemical Kinetics and Rocket Nozzle Design
Journal of the American Rocket Society, 1951Abstract : The effect of chemical kinetics on rocket nozzle design was investigated for the particular case of hydrogen gas flowing adiabatically through a typical rocket nozzle having a chamber-to-throat-area ratio of 2 to 1. For comparative purposes the following types of flow were considered: (a) constant composition (frozen equilibrium), (b ...
openaire +2 more sources
High-Performance Rocket Nozzle Concept
Journal of Propulsion and Power, 2010An innovative technical solution that overcomes the limitation induced by flow separation phenomena and allows increasing the vacuum-specific impulse of a main stage rocket engine is presented. After reviewing the open technical literature on flow separation and advance nozzles design, the newly proposed concept is extensively presented.
Luca Boccaletto, Jean-Paul Dussauge
openaire +2 more sources
A Philosophy for Improved Rocket Nozzle Design
Journal of Jet Propulsion, 1957Th i s pape r p r e s e n t s a t h r e e d i m e n s i o n a l ana lys i s of superson ic c o n t o u r e d rocke t nozzles . T h e s t u d y was u n d e r t a k e n i n o rde r t o ar r ive a t t h e des ign of s h o r t , axially s y m m e t r i c nozzles hav ing axially d i rec ted e x h a u s t a n d e i the r , or b o t h , improved p e r f o r m
openaire +2 more sources
Performance of the aerobell extendible rocket nozzle
Journal of Spacecraft and Rockets, 1969Aerobell extendible nozzle rocket engine design and performance, cold flow and simulated hot flow test ...
G. A. Hosack, R. R. Stromsta
openaire +2 more sources
Reacting Flow Simulation of Rocket Nozzles
2016Reacting flow simulation of high area ratio rocket nozzles is done using an indigenously developed Point Implicit Unstructured Finite Volume Solver. A numerical solution procedure to solve turbulent-reacting nozzle flow field is developed, which is based on the implicit treatment of chemical source terms by preconditioning and then explicitly solved ...
T. Jayachandran +3 more
openaire +2 more sources
Advanced rocket engine nozzles [PDF]
32nd Joint Propulsion Conference and Exhibit, 1996 N. Ponomarev, G. Dumnov, G. Nikulin
openaire +1 more source
Solid rocket nozzle design summary
4th Propulsion Joint Specialist Conference, 1968Solid rocket nozzle design, discussing configuration, material selection and aerodynamic, thermodynamic and stress ...
openaire +2 more sources