Results 101 to 110 of about 166,033,218 (291)
, 2010 A simple analytical expression is derived to describe the connection between the pressure coefficient distribution over the surface of a 2D airfoil and the angle of attack for steady incompressible potential flow.
A. Segalini, TALAMELLI, ALESSANDRO
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Hysteresis in the aerodynamic forces and moments of a discus governed by laminar separation bubbles
Scientific ReportsThis study investigates the aerodynamic forces and moments acting on a women’s discus as functions of angle of attack, freestream velocity, and spin rate about its axis of symmetry.
Kazuya Seo
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Impact of MgO Additions on the Oxidation Resistance and Compression Behavior of Vanadium Alloys
Advanced Engineering Materials, EarlyView.An increase in oxidation resistance at 600 °C is achieved for alloys containing more than 2.5 wt.% MgO. It has been established that, along with V2O5, MgO6V2, and Mg2O7V2 are formed, which are presumed to enhance oxidative stability. Furthermore, the possible transformation of Mg‐vanadates through reaction with CO2, which presumably occurs in this ...
Ievgen Solodkyi +5 more
wiley +1 more source
Attack And Recoil Angle Dependence Of The Li + Hf → Lif + H Reaction At J = 0
, 2015 This article presents a quantum theoretical study of the attack-angle dependence and the recoil-angle selectivity in the title reaction. Two complementary approaches were used: the preferred attack angle method and the examination of spatial ...
De Miranda M.P.
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Advanced Engineering Materials, EarlyView.Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali +5 more
wiley +1 more source
Angle of Attack Modulation for Mars Entry Terminal State Optimization
, 2009 Presented at the 2009 AIAA Atmospheric Flight Mechanics Conference in Chicago, IL.From the perspective of atmospheric entry, descent, and landing (EDL), one of the most foreboding destinations in the solar system is Mars due in part to its exceedingly ...
Cerimele, Chris J., Lafleur, Jarret M.
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Advanced Engineering Materials, EarlyView.Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees +6 more
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Investigating the attack angle of squeegees with different geometries
, 2018 Purpose The attack angle of stencil printing squeegees with different geometries was analysed using finite element modelling. Design/methodology/approach A finite element model (FEM) was developed to determine the attack angle during the stencil ...
Oliver Krammer +4 more
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Analysis of aerodynamic characteristics of helicopter biplane tailplane
Xibei Gongye Daxue XuebaoTo analyze the aerodynamic characteristics of helicopter biplane tailplane, computational models for helicopter biplane tailplane and monoplane tailplane were established via CFD.
SUN Huixun +5 more
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