Results 11 to 20 of about 5,045,034 (354)

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

Energies, 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, Yanjie Ma, Futing Bao, Yang Liu, Weihua Hui   +4 more
doaj   +1 more source

Planetary Internal Structures [PDF]

, 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, Chabrier, G, Fortney, J, Sotin, C   +3 more
openaire   +3 more sources

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

Defence 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, Ke-juan Meng, Wu-xi Xie, Hong-qi Nie, Qi-Long Yan   +4 more
doaj   +1 more source

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

Aerospace, 2023
A gas–solid-coupled sandwich combustion model was established for ammonium perchlorate (AP)/hydroxyl-terminated polybutadiene (HTPB) composite propellant.
Di Sun, Yongzhou Li, Peijin Liu, Bofeng Chen, Wei Fan   +4 more
doaj   +1 more source

Internal structure of Skyrme black hole [PDF]

, 2001
We consider the internal structure of the Skyrme black hole under a static and spherically symmetric ansatz. $@u8(Be concentrate on solutions with the node number one and with the "winding" number zero, where there exist two solutions for each horizon ...
D.V. Gal’tsov, E.E. Donets, E.E. Donets, H. Luckock, H. Luckock, K. Maeda, K. Maeda, Kei-ichi Maeda, M.S. Volkov, P. Bizon, P. Bizon, P. Breitenlohner, R. Bartnik, R. Thom, S. Droz, T. Poston, T. Tachizawa, T. Tamaki, T. Tamaki, T. Torii, T.H.R. Skyrme, T.H.R. Skyrme, Takashi Tamaki, Takashi Torii   +23 more
core   +2 more sources

A New Erosive Burning Model of Solid Propellant Based on Heat Transfer Equilibrium at Propellant Surface

International Journal of Aerospace Engineering, 2020
Erosive burning refers to the augmentation of propellant burning rate appears when the velocity of combustion gas flowing parallel to the propellant surface is relatively high.
Yanjie Ma, Futing Bao, Lin Sun, Yang Liu, Weihua Hui   +4 more
doaj   +1 more source

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

Xibei 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

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

Aerospace, 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, Yiming Feng, Jinying Ye, Na Li, Oskar J. Haidn   +4 more
doaj   +1 more source

Internal Data Structures

Applied Statistics, 1971
In most computer languages, the data are regarded as being held in machine storage either as individual scalar quantities or as members of rectangular arrays. It would make these languages more useful if the user were allowed to specify the shapes of other structures in which he wished to consider the data as being held, such as triangular arrays ...
Gower, J. C., Hill, I. D.
openaire   +1 more source

Research on Skin-Friction Drag Reduction by Hydrogen Injection in Supersonic Boundary Layer

Xibei Gongye Daxue Xuebao, 2019
In order to investigate the applicability of the skin-friction reduction technique using hydrogen injecting into turbulent boundary layer, three-dimensional numerical simulation was carried out for a constant-cross-confined-space with rearward facing ...

doaj   +1 more source