Results 51 to 60 of about 230,861 (348)
Secondary instability in the wake of a circular cylinder
Physics of Fluids, 1996 Secondary instability of flow past a circular cylinder is examined using highly accurate numerical methods. The critical Reynolds number for this instability is found to be Rec=188.5. The secondary instability leads to three-dimensionality with a spanwise wavelength at onset of 4 cylinder diameters.
Henderson, Ronald D., Barkley, Dwight
openaire +2 more sources
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
Evaluating Energy Absorption Performance of Filled Lattice Structures
Advanced Engineering Materials, EarlyView.Maximum stress must be considered to robustly evaluate energy absorber designs. This approach was applied to compare all types of absorbers in a single Ashby diagram and determine the utility of filling lattice voids with a second material. High‐performance fillers can improve the performance of lattices that are limited by buckling or catastrophic ...
Christian Bonney +2 more
wiley +1 more source
Numerical Simulation of three-dimensional flow around a circular cylinder of finite length
Zhongguo Jianchuan Yanjiu, 2018 [Objectives]In this paper, in order to study the flow characteristics and mechanism of three-dimensional flow around a circular cylinder of finite length,[Methods] a numerical simulation using a Large Eddy Simulation (LES) and vortex structural ...
WANG Xiaocong, GUI Hongbin, LIU Yang
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Investigating the effect of rotational degree of freedom on a circular cylinder at low reynolds number in cross flow [PDF]
, 2011 Numerical simulations of Vortex-Induced Vibrations (VIV) of a circular cylinder in cross flow with a rotational degree of freedom about its axis have been carried out by means of a finite-volume method.
Bahai, H, Madani, SH, Wissink, J
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Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys
Advanced Engineering Materials, EarlyView.This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa +9 more
wiley +1 more source
Effect of High Porosity Screen on the Near Wake of a Circular Cylinder
EPJ Web of Conferences, 2013 The change in flow characteristics downstream of a circular cylinder (inner cylinder) surrounded by a permeable cylinder (outer cylinder) made of a high porosity screen was investigated in shallow water using Particle Image Velocimetry (PIV) technique ...
Sahin B., Akilli H., Ozkan G.M.
doaj +1 more source
, 2008 Using an exact numerical method for finite nonplanar objects, we demonstrate a stable mechanical suspension of a silica cylinder within a metallic cylinder separated by ethanol, via a repulsive Casimir force between the silica and the metal.
Alejandro W. Rodriguez +9 more
core +1 more source
Advanced Engineering Materials, EarlyView.This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat +7 more
wiley +1 more source
Rotor: Jurnal Ilmiah Teknik Mesin, 2012 The study was conducted to obtain information about the characteristics of fluid flow that touches the surface of the bluff body. Bluff body in the form of circular and elliptical cylinders and brought near a wall.
Helmizar Helmizar
doaj