Results 91 to 100 of about 138,816 (307)

A Review of Flow Control Strategies for Supersonic/Hypersonic Fluid Dynamics

Aerospace Research Communications
Supersonic and hypersonic flows have gained considerable attention in the aerospace industry in recent years. Flow control is crucial for refining the quality of these high-speed flows and improving the performance and safety of fast aircraft. This paper
Shibo Lee, Yunlong Zhao, Jiaqi Luo, Jianfeng Zou, Jifa Zhang, Jifa Zhang, Yao Zheng, Yao Zheng, Yang Zhang, Yang Zhang   +9 more
doaj   +1 more source

Flight propulsion control integration for V/STOL aircraft [PDF]

The goal of the propulsion community is to have the enabling propulsion technologies in place to permit a low risk decision regarding the initiation of a research STOVL supersonic attack fighter aircraft in the mid-1990's.
Mihaloew, James R.
core   +1 more source

Testing of a Supersonic Nozzle with Supersonic Intake

International Journal of Science and Research (IJSR), 2021
G Veeresh Kumar, M Naga Sailaja, Ravi Sandeep Kumar Kona   +2 more
openaire   +1 more source

Electrochemical Evaluation of Compressed Selective Laser Melted AlSi7Mg and AlSi10Mg Alloys in Chloride Environment

Advanced Engineering Materials, EarlyView.
The corrosion performance of AlSi7Mg and AlSi10Mg alloys produced through selective laser melting (SLM) was examined under compressive stress in a chloride environment. Electrochemical analyses, including open‐circuit potential (OCP), potentiodynamic polarization (CPP), and electrochemical impedance spectroscopy (EIS), were complemented by scanning ...
Femi John Akinfolarin, Samson Dare Oguntuyi, Peter Apata Olubambi   +2 more
wiley   +1 more source

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

Advanced 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, Shuvra Saha, Sumit Hassan Eshan, Rinku Basak, Md. Nahian Al Subri Ivan, Ahmed Murtuza Saleque, Raja Tariqul Hasan Tusher, Sadia Zabin, Md. Abdur Rahman, Yuen Hong Tsang   +9 more
wiley   +1 more source

Design and flow field characterization of safety valves based on the Laval principle

Mechanics & Industry
This paper designs a new type of safety valve suitable for ultra-supercritical conditions and analyzes its flow field characteristics through numerical simulation.
Wang Lisong, Qin Zhuozhuo, Qi Hongguang, Wang Zengcheng, Jiang Wenrui, Xu Jiao, Li Dameng, Jin Xin   +7 more
doaj   +1 more source

An analog fluid model for some tachyonic effects in field theory

, 2011
We consider the sound radiation from an acoustic point-like source moving along a supersonic ("space-like") trajectory in a fluid at rest. We call it an acoustic "tachyonic" source. We describe the radiation emitted by this supersonic source.
Abrikosov A. A., Browne I. W. A., C. H. G. BÉSSA, E. ARIAS, Ford L. H., Itzykson C., Morse P. M., N. F. SVAITER, Olkhovsky V. S., Pearson T. J., Pooley G., Recami E., Recami E., Schützhold R., Sen A., Shi S. G., Sokolov A. A.   +16 more
core   +1 more source

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

Advanced 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, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Finite-Time Output Robust Control for Restricted Joint Flight Emulator Robotic Arm With Adaptive Tangent Barrier Gains

IEEE Access
This research presents a novel, robust controller for acceleration tracking in robotic manipulators with time-varying joint limitations, accounting for articulation constraints.
Isaac Chairez, Alejandra Hernandez-Sanchez, Caridad Mireles, Arthur Mukhamedov, Grigory Bugriy, Stepan Lemak, Viktor Chertopolokhov   +6 more
doaj   +1 more source

Trade Studies Relating to a Long Range Mach 2.6 Supercruiser [PDF]

A systems study was conducted on an aircraft concept, representative of a supersonic-cruise military aircraft (supercruiser). The study results indicate that supersonic ranges in excess of 4000 n.mi.
Foss, W. E., Jr., Sorrells, R. B., III
core   +1 more source