Results 91 to 100 of about 306,363 (301)
Propagation of a Topological Transition: the Rayleigh Instability
, 1997 The Rayleigh capillary instability of a cylindrical interface between two immiscible fluids is one of the most fundamental in fluid dynamics. As Plateau observed from energetic considerations and Rayleigh clarified through hydrodynamics, such an ...
Goldstein, Raymond E. +3 more
core +1 more source
Detailed Analyses of Flow in Porous Media and around Cylindrical Structures
, 2022 This thesis investigates the interaction of flow-structure-porous media in marine environment based on numerical simulations and experimental measurements. Scour protection around a mono-pile and permeable seabed around pipelines, as common marine porous structures, are examined, respectively. To simulate the flow in porous media, a volume-averaged k-ω
openaire +1 more source
Izvestiya. Ferrous Metallurgy, 2019 For straightening of low-rigid cylindrical details like shaft and axes different types of loadings are considered which form tension different in size and in distribution. As the perspective direction, it is possible to consider correction by a bend at the influence of the distributed loading with the subsequent hardening of a billet by superficial ...
S. A. Zaides, Kuang Le Khong
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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 +6 more
wiley +1 more source
Braking characterization of a multi-arc cylindrical magnetorheological fluid brake
Advances in Mechanical EngineeringTo enhance the braking torque, this study proposes a multi-arc cylindrical magnetorheological fluid brake. Firstly, the structure and operational principle of the multi-arc cylindrical magnetorheological fluid brake is described in detail. Through finite
Jianzuo Ma +4 more
doaj +1 more source
Calculating Nonlocal Optical Properties of Structures with Arbitrary Shape
, 2010 In a recent Letter [Phys. Rev. Lett. 103, 097403 (2009)], we outlined a computational method to calculate the optical properties of structures with a spatially nonlocal dielectric function.
A. D. Boardman +7 more
core +1 more source
Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
Antibacterial Characteristics of Lotus-Type Porous Copper
Advances in Materials Science and Engineering, 2013 Lotus-type porous copper with long cylindrical pores aligned parallel to the solidification direction was studied for use as an antibacterial material.
Jin-Soo Lee +6 more
doaj +1 more source
Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere
Advanced Engineering Materials, EarlyView.This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm +6 more
wiley +1 more source