Results 21 to 30 of about 5,076,655 (301)

Agglomerate Size Evolution in Solid Propellant Combustion under High Pressure

open access: yesAerospace, 2023
Solid propellant combustion and flow are significantly affected by condensed combustion products (CCPs) in solid rocket motors. A new aluminum agglomeration model is established using the discrete element method, considering the burning rate and ...
Songchen Yue   +7 more
doaj   +1 more source

The Confirmation of Thermal Boundary Parameters in an Oxygen Kerosene Fuel-Rich Rocket Engine

open access: yesAerospace, 2022
The thermal environment is an important factor in the design of liquid rockets. In this paper, theoretical analysis, numerical simulation and experimental testing are conducted to study the boundary thermal characteristics of a GOX/kerosene liquid rocket
Xianggeng Wei   +5 more
doaj   +1 more source

Extended Application and Experimental Verification of a New Erosive Burning Model Coupled Heat Transfer between Gas and Grain Based on a Star-Grain Solid Rocket Motor

open access: yesEnergies, 2022
The estimation of erosive burning is of great importance for the internal ballistics computation of a solid rocket motor (SRM) with a large aspect ratio.
Lin Sun   +4 more
doaj   +1 more source

On the Structure of an Internal Groupoid

open access: yesApplied Categorical Structures, 2023
AbstractThe category of internal groupoids (in an arbitrary category) is shown to be equivalent to the full subcategory of so called involutive-2-links that are unital and associative.
openaire   +2 more sources

Tuning the reactivity of Al–Ni by fine coating of halogen-containing energetic composites

open access: yesDefence Technology, 2022
In this paper, various core-shell structured Al–Ni@ECs composites have been prepared by a spray-drying technique. The involved ECs refer to the energetic composites (ECs) of ammonium perchlorate/nitrocellulose (AP/NC, NA) and polyvinylidene fluoride ...
Su-lan Yang   +4 more
doaj   +1 more source

Planetary Internal Structures [PDF]

open access: yes, 2014
This chapter reviews the most recent advancements on the topic of terrestrial and giant planet interiors, including Solar System and extrasolar objects. Starting from an observed mass-radius diagram for known planets in the Universe, we will discuss the various types of planets appearing in this diagram and describe internal structures for each type ...
Baraffe, I   +3 more
openaire   +3 more sources

Probing the internal structure of baryons [PDF]

open access: yesNational Science Review, 2021
Abstract Electromagnetic form factors are fundamental observables that describe the electric and magnetic structure of hadrons and provide keys to understand the strong interaction. At the Beijing Spectrometer (BESIII), form factors have been measured for different baryons in the time-like region for the first time or with the best ...
Guangshun Huang, Rinaldo Baldini Ferroli
openaire   +3 more sources

Numerical Investigation on the Effect of Ammonium Perchlorate Content and Position on the Combustion Characteristics of an Ammonium Perchlorate/Hydroxyl-Terminated Polybutadiene Propellant

open access: yesAerospace, 2023
A gas–solid-coupled sandwich combustion model was established for ammonium perchlorate (AP)/hydroxyl-terminated polybutadiene (HTPB) composite propellant.
Di Sun   +4 more
doaj   +1 more source

Influence of Mass Flow Rate on the Atomization Characteristics of Screw Conveyor Swirl Injectors

open access: yesAerospace, 2022
This study conducted cold flow experimental research on the influence of mass flow rate on the atomization characteristics of screw conveyer swirl injectors in an opening environment.
Xianggeng Wei   +4 more
doaj   +1 more source

Bistability and Triggering Analysis of Thermoacoustic Instability in a Horizontal Rijke Tube

open access: yesXibei Gongye Daxue Xuebao, 2019
Dynamical systems theory has been often employed to study nonlinear flow and flame dynamics in combustion systems. However, the corresponding studies using nonlinear dynamics to analyze the Rijke tube thermoacoustic system are still occasional.

doaj   +1 more source

Home - About - Disclaimer - Privacy