Results 131 to 140 of about 6,842,466 (349)

Numerical simulation study on the propagation and attenuation of shock waves in ventilation tunnels

Scientific Reports
This study systematically investigated the influence of tunnel spatial characteristics on the propagation and attenuation patterns of gas explosion shock waves by establishing models of straight tunnels with varying bending angles and branched tunnels ...
Wei Li
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

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

Advanced 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, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Relative assessment of different turbulence models in prediction of airfoil characteristics for a wide range of angle of attack [PDF]

Simulation of separated flow past an airfoil beyond stall, along with the prediction of stall itself still remains a challenging problem. In practical design and analysis problems of aerodynamics involving turbulent flow, the most widely used ...
Majumdar, Sekhar, Kulkarni, DS, Sarkar, S   +2 more
core  

Pressure-Stimulated Supercrystal Formation in Nanoparticle Suspensions

, 2018
Nanoparticles can self-organize into “supercrystals” with many potential applications. Different paths can lead to nanoparticle self-organization into such periodic arrangements.
Gerhard Grübel (2223652), Johannes Möller (5596847), Martin A. Schroer (2196391), Felix Lehmkühler (2091538), Holger Lange (1541335), Florian Schulz (1753477)   +5 more
core   +1 more source

Mathematical model for droplet size prediction of gas-water nozzle based on orthogonal experiment

Meikuang Anquan
In order to understand the influence of process parameters and structural parameters of internal mixing gas-water nozzle on atomization characteristics, based on a self-designed experimental platform for atomization characteristics, the influence of air ...
Xin WANG, Wenpu LI, He SHAO, Yiyi ZHENG, Yurong GAO, Xi CHEN   +5 more
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

AN ANALYTICAL RELATIONSHIP BETWEEN PRESSURE COEFFICIENT DISTRIBUTION AND ANGLE OF ATTACK IN POTENTIAL FLOW AROUND AIRFOILS

, 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
core  

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

Advanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

Numerical simulation of rivulet evolution on a horizontal cable subject to an external aerodynamic field

, 2010
On wet and windy days, the inclined cables of cable-stayed bridges may experience a large amplitude oscillation known as rain-wind-induced vibration (RWIV).
Duffy, B.R., Robertson, A.C., Sullivan, J.M., Taylor, I.J., Wilson, S.K.   +4 more
core   +1 more source