Results 21 to 30 of about 1,531,293 (230)

Advances in Hybrid Rocket Technology and Related Analysis Methodologies [PDF]

open access: yes, 2020
The book is an amazing collection of technical papers dealing with hybrid rockets. Once perceived as a niche technology, for about a decade, hybrid rockets have enjoyed renewed interest from both the propulsion technical community and industry.

core   +1 more source

Numerical analysis of paraffin-wax/oxygen hybrid rocket engines [PDF]

open access: yes, 2020
A predictive numerical approach, based on Reynolds-averaged Navier–Stokes simulations including the effects of turbulence, chemistry, fluid/surface interaction, and radiation, has been developed for paraffin-wax/oxygen hybrid rocket engines.
Bianchi D., Migliorino M. T., Nasuti F.
core   +1 more source

Large-Scale CAMUI Type Hybrid Rocket Motor Scaling, Modeling, and Test Results

open access: yesAerospace, 2021
An understanding of the scalability of hybrid rocket regression models is critical for the enlargement and commercialization of small-scale engines developed within universities and similar research institutions.
Tor Viscor   +4 more
doaj   +1 more source

Flow Separation in Rocket Nozzles, a Simple Criteria [PDF]

open access: yes, 2005
Cold and hot flow tests were conducted to investigate the flow separation in rocket nozzles. The results are presented. A separation data base including a wide range of literature data is established to evaluate the influence of propellant combination ...
Ralf Stark, Stark, Ralf
core   +1 more source

Convective and Film Cooled Nozzle Extension for a High Pressure Rocket Subscale Combustion Chamber [PDF]

open access: yes, 2010
Experimental investigations have been carried out to study heat transfer, flow separation, and side loads in a subscale nozzle extension. A Vulcain 2-like nozzle geometry has been tested with combustion chamber pressures up to 13 MPa. A new manufacturing
Richard Arnold   +5 more
core   +1 more source

Polymer Combustion as a Basis for Hybrid Propulsion: A Comprehensive Review and New Numerical Approaches

open access: yesEnergies, 2011
Hybrid Propulsion is an attractive alternative to conventional liquid and solid rocket motors. This is an active area of research and technological developments.
Vasily Novozhilov   +5 more
doaj   +1 more source

Investigation of Throttleable Hybrid Rocket Engines with application to Attitude Control [PDF]

open access: yes, 2021
The growing number of companies entering the private space sector has reignited the search for innovative propulsion techniques in an attempt to secure a position in the competitive launch vehicle industry.
Sexsmith, Cameron M, Clay, Alex Q
core   +1 more source

Cryogenic Tribology of High-Speed Bearings and Shaft Seals in Liquid Hydrogen

open access: yesTribology Online, 2011
Liquid hydrogen (LH2) is excellent in extensive storage and transportation systems, such as being used as fuel in highly efficient liquid-rocket engines.
Masataka Nosaka
doaj   +1 more source

A hybrid boundary for the prediction of intake wave dynamics in IC engines [PDF]

open access: yes, 2004
This paper concerns the calculation of wave dynamics in the intake systems of naturally aspirated internal combustion (I.C.) engines. In particular it presents a method for improving the boundary conditions required to solve the one-dimensional Euler ...
Perez Arenas, R., Harrison, M. F.
core   +1 more source

Theoretical Investigation on Feedback Control of Hybrid Rocket Engines

open access: yesAerospace, 2019
Despite the fact that hybrid propulsion offers significant benefits, it still suffers from some limitations such as the natural oxidizer to fuel ratio shift which induces variations of the engines’ performances while operating.
Jérôme Messineo, Toru Shimada
doaj   +1 more source

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