Results 81 to 90 of about 13,180 (230)
The Impacts of Three Flamelet Burning Regimes in Nonlinear Combustion Dynamics [PDF]
, 2018 Axisymmetric simulations of a liquid rocket engine are performed using a delayed detached-eddy-simulation (DDES) turbulence model with the Compressible Flamelet Progress Variable (CFPV) combustion model.
Nguyen, Tuan, Sirignano, William A.
core +2 more sources
A Blockchain‐Less Traceability System for Agriculture Using DAG, IPFS, and Serverless Deployments
International Journal of Network Management, Volume 36, Issue 3, May/June 2026.ABSTRACT Ensuring transparency and integrity in agricultural data management is a critical challenge as the sector increasingly relies on advanced technologies. The primary problem is maintaining data traceability and security throughout the supply chain.
Antonio Villafranca +6 more
wiley +1 more source
Neural Network-Based Optimization of Hybrid Rocket Design for Modular Multistage Launch Vehicle
AerospaceIn this paper, an integrated optimization is carried out to find the optimal hybrid rocket engine design for a modular multistage launch vehicle targeting a 500 km polar circular orbit. A single hybrid rocket engine unit is reused across the whole launch
Paolo Maria Zolla +3 more
doaj +1 more source
Polymers for Advanced Technologies, Volume 37, Issue 5, May 2026.ABSTRACT Advanced composite materials have become the leading material platform for high‐performance sports equipment, enabling superior strength‐to‐weight performance, stiffness tailoring, and enhanced functional integration compared with conventional materials. This review summarizes state‐of‐the‐art developments across multiple sporting disciplines,
Alhayat Getu Temesgen +5 more
wiley +1 more source
Final design report of a personnel launch system and a family of heavy lift launch vehicles [PDF]
The objective was to design both a Personnel Launch System (PLS) and a family of Heavy Lift Launch Vehicles (FHLLVs) that provide low cost and efficient operation in missions not suited for the Shuttle.
Burton, Lee +7 more
core +1 more source
Performances Study of a Hybrid Rocket Engine
INCAS BULLETIN, 2018 This paper presents a study which analyses the functioning and performances optimization of a hybrid rocket engine based on gaseous oxygen and polybutadiene polymer (HTPB). Calculations were performed with NASA CEA software in order to obtain the parameters resulted following the combustion process.
openaire +2 more sources
Project LOCOST: Laser or Chemical Hybrid Orbital Space Transport [PDF]
A potential mission in the late 1990s is the servicing of spacecraft assets located in GEO. The Geosynchronous Operations Support Center (GeoShack) will be supported by a space transfer vehicle based at the Space Station (SS).
Dixon, Alan +5 more
core +1 more source
Multiphysics Modelling of a Hybrid Rocket Engine [PDF]
14th WCCM-ECCOMAS Congress, 2021 Ferrero, A. +3 more
openaire +2 more sources
InventionsThis study focuses on an innovative green propellant based on paraffin, stearic acid, and coal, used in hybrid rocket engines. Additionally, lab-scale firing tests were conducted using a hybrid rocket motor with gaseous oxygen as the oxidizer, utilizing ...
Grigore Cican +5 more
doaj +1 more source
Validation of Integral Method for Numerical Prediction of Hybrid Rocket Internal Ballistics
Journal of Fluid Science and Technology, 2013 In order to design hybrid rocket engines, we developed a numerical prediction method which describes the internal ballistics, thus the solid fuel regression rate. In order to obtain a fast code, simple but efficient models have been implemented.
Yuki FUNAMI, Toru SHIMADA
doaj +1 more source