Results 51 to 60 of about 10,741 (228)

Optimization of cooling channels of liquid rocket engines using a differential heat transfer model

open access: yesАвіаційно-космічна техніка та технологія
The subject matter of this study is the thermophysical processes occurring in the cooling channels of liquid-propellant rocket engines. The goal of this research is to create an algorithm for optimizing cooling channels.
Volodymyr Sliusariev
doaj   +1 more source

The issue of ensuring the safe explosion of the spent orbital stages of a launch vehicle with propulsion rocket engine

open access: yesMATEC Web of Conferences, 2017
A method for increasing the safe explosion of the spent orbital stages of a space launch vehicle (SLV) with a propulsion rocket engine (PRE) based on the gasification of unusable residues propellant and venting fuel tanks.
Trushlyakov Valeriy I.   +1 more
doaj   +1 more source

Detection of Perchlorate in Swabs Using Linear Sweep Voltammetry at a Liquid–Liquid Microinterface Array

open access: yesAnalysis &Sensing, Volume 6, Issue 3, May 2026.
Perchlorate is a potential environmental contaminant and ease of its detection is needed to support environmental monitoring. Current detection methods mainly involve chromatographic and mass spectrometric methods, which have limitations in terms of portability and cost.
Celine P. A. Otiob   +5 more
wiley   +1 more source

The Effects of Non-uniform Distribution of Oxidizer Flow on High-Frequency Combustion Instability

open access: yesMATEC Web of Conferences, 2019
The numerical calculation of three-dimensional unsteady combustion for the combustion chamber of LOX/kerosene high pressure staged combustion rocket engine was carried out.
Chen Peng   +5 more
doaj   +1 more source

Shock‐Assisted Flow Control System in Convergent‐Divergent Nozzle: A Numerical Study on Unconventional Protuberance With Different Geometry

open access: yesEngineering Reports, Volume 8, Issue 5, May 2026.
A numerical investigation using 3D RANS simulations demonstrates significant effects of protuberance geometry—cubic, cylindrical, spherical, and conical—on shock‐induced thrust vectoring in supersonic nozzles. Cubic protuberances provide the maximum jet deflection (˜2°) with negligible thrust reduction.
Mohammadreza Soufivand   +3 more
wiley   +1 more source

Assessment of the Interaction between Ammonium Dinitramide and Isocyanurate Bonding Agents for Application on Technologies of Composite Solid Propellants

open access: yesPropellants, Explosives, Pyrotechnics, Volume 51, Issue 5, Page 724-732, May 2026.
This work investigates the interaction of two isocyanurate‐based bonding agents with ammonium dinitramide: triallyl isocyanurate and 1,3,5‐tris(2‐hydroxyethyl) isocyanurate, which contain alkene and hydroxyl functional groups in their side chains, respectively.
Jessica O. Silva   +5 more
wiley   +1 more source

Statistical derivation of design criteria for liquid rocket combustion instability Final report [PDF]

open access: yes
Statistical correlation between engine design and combustion stability in liquid propellant rocket ...
Bastress, E. K.   +2 more
core   +1 more source

Dual-fuel, dual-mode rocket engine [PDF]

open access: yes, 1989
The invention relates to a dual fuel, dual mode rocket engine designed to improve the performance of earth-to-orbit vehicles. For any vehicle that operates from the earth's surface to earth orbit, it is advantageous to use two different fuels during its ...
Martin, James A.
core   +1 more source

Characterization of Ultrafast Decomposition Dynamics in Nitrate Esters

open access: yesPropellants, Explosives, Pyrotechnics, Volume 51, Issue 5, Page 714-723, May 2026.
ABSTRACT Ignition of energetic materials initiates chemical reactions on atomic length scales within femtoseconds, making these reactions difficult to investigate experimentally. The technique of femtosecond time‐resolved mass spectrometry (FTRMS) can capture molecular rearrangement and bond‐breaking events in isolated molecules with sub‐50 femtosecond
Madison K. Minvielle   +3 more
wiley   +1 more source

Factors Affecting Characteristic Length of the Combustion Chamber of Liquid Propellant Rocket Engines

open access: yesMehran University Research Journal of Engineering and Technology, 2019
Optimum characteristic length of the combustion chamber of liquid rocket engine is very important to get higher energy from the liquid propellants. Characteristic length is defined by the time required for complete burning of fuel.
Tajwali Khan, Ihtzaz Qamar
doaj  

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