Results 11 to 20 of about 13,320 (264)

Comparison of two procedures for predicting rocket engine nozzle performance [PDF]

open access: green23rd Joint Propulsion Conference, 1987
Two nozzle performance prediction procedures which are based on the standardized JANNAF methodology are presented and compared for four rocket engine nozzles. The first procedure required operator intercedence to transfer data between the individual performance programs.
Ken Davidian
openaire   +3 more sources

Supersonic Flow Separation with Application to Rocket Engine Nozzles

open access: greenApplied Mechanics Reviews, 2005
The past decade has seen a qualitative advancement of our understanding of physical phenomena involved in flow separation in supersonic nozzles; in particular, the problem of side loads due to asymmetrical pressure loads, which constitutes a major restraint in the design of nozzles for satellite launchers.
Barbro Muhammad-Klingmann   +2 more
openaire   +4 more sources

Acoustical Measurements of Static Tests of Clustered and Single-Nozzled Rocket Engines [PDF]

open access: bronzeThe Journal of the Acoustical Society of America, 1964
The predictions of the acoustic effects of the static firing of large rocket engines have usually been based upon such engine parameters as specific impulse, nozzle diameter, etc. However, the recent development of large clusters of smaller engines have introduced a new possible variant.
Richard N. Tedrick
openaire   +3 more sources

Fluid–structure interaction study of the start-up of a rocket engine nozzle [PDF]

open access: greenComputers & Fluids, 2010
The aim of this paper is to analyze the aeroelastic processes developed during the starting phase of a rocket engine via a coupling fluid/structure code. This analysis gives a better understanding of the behavior of the structure as the shock waves propagate inside the engine nozzle.
Garelli, Luciano   +2 more
openaire   +6 more sources

Cattaneo-Christov heat flux and entropy generation on hybrid nanofluid flow in a nozzle of rocket engine with melting heat transfer

open access: goldCase Studies in Thermal Engineering, 2021
This study aims to scrutinize the mathematical formulations of hybrid nanoliquid filled with thermal radiation, Cattaneo-Christov heat theory and melting phenomenon in a nozzle of rocket engine that includes hybrid nanoparticles (CoFe2O4,CdTe,TiO2,Cu&CuO)
Hassan Waqas   +4 more
doaj   +2 more sources

Results of experimental evaluation of the possibility of using an annular nozzle with a flat central body as part of a stand liquid rocket engine chamber

open access: diamondВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
One of the ways to increase the efficiency of a rocket engine chamber is to ensure the fixed nozzle operation in the design mode over the entire range of altitudes (ambient pressure) of engine operation.
A. A. Kirshina   +2 more
doaj   +2 more sources

Transonic Flow Field Analysis of a Minimum Nozzle Length Rocket Engine [PDF]

open access: diamondINCAS Bulletin
The aim of this paper is to develop a profile of axisymmetric minimum length nozzle giving a uniform and parallel flow at the exit section. The study is done at high temperature, lower than the dissociation threshold of the molecules.
Omar ABADA, Hakim KBAB, Sidali HAIF
doaj   +2 more sources

Increasing the efficiency and stability of fuel supply to the combustion chamber of a liquid rocket engine by spray nozzles

open access: diamondВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
In this paper, various configurations of jet nozzles are analyzed, as well as their design. The effects of the inlet chamfer of jet nozzles on their flow rate and range are considered.
Yu. I. Ageenko, A. S. Bubnova
doaj   +2 more sources

CFD Analysis of De Laval Nozzle of a Hybrid Rocket Engine [PDF]

open access: diamondE3S Web of Conferences
: The study gives a general overview of the CFD-simulated gas flow via the nozzle of a De Laval rocket engine. In CFD software, the mesh is generated using the nozzle’s geometry.
Ahmad Mohamed Tarmizi   +6 more
doaj   +2 more sources

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