Results 21 to 30 of about 331 (194)
Journal of the Global Power and Propulsion Society, 2017 This article presents a numerical method and its application for an assessment of the flow field inside a wind tunnel. A structured computational fluid dynamics (CFDs) solver with overset mesh technique is developed in order to simulate geometrically ...
Atsushi Tateishi +3 more
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Research on Wind Tunnel Test of Aerodynamic Characteristics of Missile under Subtransonic Velocity
Hangkong gongcheng jinzhan, 2020 In the process of missile design, the aerodynamic characteristics of missile as an important factor directly affect the dynamic quality of missile flight. In the case of severe nonlinearity of aerodynamic characteristics in subsonic and transonic regions,
PENG Bo, CEN Mengxi
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The Current Gap between Design Optimization and Experiments for Transonic Compressor Blades
International Journal of Turbomachinery, Propulsion and Power, 2023 The successful design of compressor blades through numerical optimization relies on accurate CFD-RANS solvers that are able to capture the general performance of a given design candidate.
Edwin Joseph Munoz Lopez +4 more
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Aerodynamic Free-Flight Conditions in Wind Tunnel Modelling through Reduced-Order Wall Inserts
Fluids, 2021 Parallel sidewalls are the standard bounding walls in wind tunnels when making a wind tunnel model for free-flight condition. The consequence of confinement in wind tunnel tests, known as wall-interference, is one of the main sources of uncertainty in ...
Narges Tabatabaei +3 more
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Causes and Solution of Aperiodicity of Supersonic Flow Field Downstream of a Profile Cascade
Communications, 2012 The paper deals with problems of transonic flow field periodicity downstream of a profile cascade with finite number of blades. The origin of phenomena generating this aperiodicity in transonic wind tunnel is described.
Martin Luxa +3 more
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Symmetry‐Guided Multifunctional Acoustic System Based on Mechanically Actuated Sonic Crystals
Advanced Engineering Materials, EarlyView.This study presents the design, simulation, and experimental validation of amultifunctional acoustic metamaterial based on rotationally engineered sonic crystals.By tuning cylinder orientations, controllable band gaps and six distinct functionalities—including switching, topological insulation, beam splitting, and logic operations—areachieved ...
Yuanyan Zhao +2 more
wiley +1 more source
Self‐Assembled Lipids as Soft Dielectrics
Advanced Functional Materials, EarlyView.Self‐assembled lipid bilayers serve as soft dielectric materials for ultrathin electronics. Using liquid‐metal parallel‐plate junctions, the capacitance and dielectric breakdown of dehydrated lipid films are characterized. Dielectric behavior is controlled by lipid molecular structure, cholesterol content, and assembly conditions, providing molecular ...
Hao Yang +4 more
wiley +1 more source
Xibei Gongye Daxue Xuebao, 2023 Turbulence intensity in test section is an important index to evaluate the flow-field performance of wind tunnel, and provide guarantee for model's dynamics and accurate test.
PEI Haitao +4 more
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Advanced Functional Materials, EarlyView.A scalable, solution‐processed WSe2/ZrO2‐x van der Waals heterostructure realizes a light‐induced field‐tunneling synapse (LIFTS) that activates exclusively under bright illumination, emulating the photopic adaptation of the human retina at the device level.
Kijeong Nam +10 more
wiley +1 more source
Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives
Advanced Materials, EarlyView.Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi +4 more
wiley +1 more source