Results 51 to 60 of about 4,511 (269)

Influence of the shape of the subsonic part of the supersonic inlet device on the coefficient of conservation of total pressure

open access: yesАвіаційно-космічна техніка та технологія
The subject of this study is the total pressure conservation coefficient. The object of this study is the channel of the subsonic part of a supersonic input device of rectangular and oval shape, equivalent in size.
Artem Khorokhordin   +4 more
doaj   +1 more source

Characterization of Aluminized Layers on Inconel‐738 Alloy: Microstructure, Modeling of Aluminizing Kinetics, and Thermal Behavior

open access: yesAdvanced Engineering Materials, EarlyView.
This study explored how effective nickel aluminide coatings are obtained in providing oxidation resistance applied to the Inconel 738 alloy, modeling with diffusion models. In the present study, kinetics and thermal behavior of the Inconel 738 alloy were studied by the low‐temperature thermoreactive aluminizing process, which was carried out at 625°C ...
Gozde Celebi Efe   +4 more
wiley   +1 more source

Design and preliminary experiment of a 0.3 × 0.15 m2 low-disturbance supersonic wind tunnel [PDF]

open access: yesAIP Advances
To meet the requirement for the low disturbance of wind tunnel flow in supersonic boundary layer transition simulation tests, a low-disturbance supersonic research wind tunnel with a nozzle size of 0.3 × 0.15 m2 and test Mach number of 3.0 was built.
Xingyou Yi   +13 more
doaj   +1 more source

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

open access: yesAdvanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan   +9 more
wiley   +1 more source

Development of low vacuum laser welding technique using an aerodynamic window

open access: yesNihon Kikai Gakkai ronbunshu, 2018
In order to realize deep laser welding, conceptual application of a supersonic jet as an aerodynamic window was investigated. Detailed characteristics of the supersonic jet as the aerodynamic window were studied experimentally.
Tatsuro UCHIDA   +2 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

Numerical simulation and parameter analysis of kerosene/oxygen combustion flame in a supersonic spray gun

open access: yesCase Studies in Thermal Engineering
The characteristics of supersonic flame, such as temperature and impact velocity, are crucial for assessing the performance of coating materials in a thermal barrier coatings (TBCs) service environment simulation device.
Zixin Song   +6 more
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

Progress on numerical simulation of thermal protection/friction reduction using supersonic fuel film with boundary layer combustion: a review

open access: yesAdvances in Aerodynamics
Organizing supersonic fuel films near the wall offers a promising solution to simultaneously reduce friction and thermal loads in the internal flow passages of hypersonic vehicles. This paper presents a thorough review of the supersonic fuel film cooling
Jianfei Wei   +5 more
doaj   +1 more source

Numerical Simulation of Flow Field Characteristics of Supersonic Jet in Natural Cavitating Tail Cavity

open access: yes水下无人系统学报
In order to reveal the evolution law of the supersonic flow field in the natural cavitating tail cavity and the flow field structure in the cavity, this paper simulated the flow field of the supersonic jet in the natural cavitating tail cavity based on ...
Yue CAO   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy