Results 61 to 70 of about 39,486 (297)

Hypergolic droplet‒film interaction dynamics at high temperatures

open access: yesDroplet, Volume 4, Issue 3, July 2025.
The whole reaction process can be distinctly identified as three stages based on the corona size and the temperature temporal evolution. In the coalescence regime, T* maintains quasi‐stationary values during initial contact, corresponding to hydrodynamic coalescence process. Consequently, the first stage is defined as the inertia‐dominant stage. In the
Yuxin Song, Zuohua Huang, Chenglong Tang
wiley   +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

Factorial Analysis of the Influence of Both Water and Oxygen on Extruded Double Base Rocket Propellant Decomposition

open access: yesPropellants, Explosives, Pyrotechnics, Volume 50, Issue 7, Page 106-114, July 2025.
ABSTRACT The decomposition mechanisms of double base rocket propellants are well known and reported, but the influence of atmospheric conditions such as water and oxygen is poorly understood. In this work, the influence of water and oxygen on an extruded double base (EDB) rocket propellant aged between 70 and 100°C was examined using heat flow ...
Alonso Romero Jabalquinto   +4 more
wiley   +1 more source

Modeling of Shutdown Process in Liquid Propellant Rocket Engines [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2014
The effects of liquid propellant rocket engines thrust termination transients are important in achieving the launch vehicle’s desired final velocity with the required precision.
M. Shafiey Dehaj   +4 more
doaj  

A Critical Review of Limitations and Challenges in Advancement of HNF as a Green Oxidizer for Composite Solid Propellant Formulations

open access: yesPropellants, Explosives, Pyrotechnics, Volume 50, Issue 7, Page 11-30, July 2025.
ABSTRACT Hydrazinium nitroformate (HNF) is a chlorine‐free, high‐energy oxidizer with promising applications in green propulsion systems. This review examines the thermal decomposition, combustion kinetics, flame structure, and behavior of HNF, while critically evaluating the current body of literature.
Lakshay Bansal   +2 more
wiley   +1 more source

Study and Characterization of Intermediates Used in the Production of the Oxidizer Ammonium Dinitramide

open access: yesPropellants, Explosives, Pyrotechnics, Volume 50, Issue 7, Page 95-105, July 2025.
ABSTRACT The aerospace industry is continually seeking materials that offer higher performance and lower environmental impact. In chemical propulsion, ammonium dinitramide (ADN) represents a significant advance in this direction as a potential replacement for ammonium perchlorate in solid propellant formulations.
Josiane R. C. Silva   +6 more
wiley   +1 more source

High temperature spark plug Patent [PDF]

open access: yes, 1966
High temperature spark plug for igniting liquid rocket ...
Watson, J. E.
core   +1 more source

Servo-Stabilization of Low-Frequency Oscillations in a Liquid Bipropellant Rocket Motor [PDF]

open access: yes, 1953
The recent work of H. S. Tsien concerning the servostabilization of rocket motors is extended to the liquid bipropellant rocket motor. It is shown that by use of a feedback system containing a device to sense the combustion chamber pressure, a suitably ...
Cox, Dale W., Jr., Marble, Frank E.
core   +1 more source

HOW DATA CENTERS HAVE COME TO MATTER: Governing the Spatial and Environmental Footprint of the ‘Digital Gateway to Europe’

open access: yesInternational Journal of Urban and Regional Research, Volume 49, Issue 4, Page 757-778, July 2025.
Abstract Data centers, the material backbone of smart cities, power the digital economy and advanced digital services. Metaphors of ‘the cloud’ and ‘cloud computing’ obscure the massive computing and storage infrastructures, the resource flows and the land uses they mediate.
Jochen Monstadt, Katherine Saltzman
wiley   +1 more source

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