Results 31 to 40 of about 64,050 (264)

Shear stress in smooth trapezoidal channel [PDF]

علوم و مهندسی آبیاری, 2009
Laboratory experiments were conducted in smooth trapezoidal channel with side slope 1:1 to measure boundary force and shear stress. Preston tube is used to estimate contribution of wall and bed shear stresses.
Arash Jael, Manoochehr Fathi Moghadam, Mahmood Bina, Mehdi Ghomeshi, Babak Lashkarara   +4 more
doaj   +1 more source

A wall-shear stress predictive model [PDF]

Journal of Physics: Conference Series, 2011
Following the approach of Marusic et al. (2010b), here we develop a predictive model for the fluctuating wall-shear stress, where the only required input is large-scale information of the streamwise velocity at a location in the outer, logarithmic region of the flow.
Ivan Marusic, Romain Mathis, Nicholas Hutchins   +2 more
openaire   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Effect of Hematocrit on Wall Shear Stress for Blood Flow through Tapered Artery

Applied Bionics and Biomechanics, 2013
The purpose of this study to show the effects of Hematocrit (Red blood cells), height of stenosis, porous parameter and velocity of blood on wall shear stress of the flow of blood through tapered artery.
A. K. Singh, D. P. Singh
doaj   +1 more source

Decreased rotational flow and circumferential wall shear stress as early markers of descending aorta dilation in Marfan syndrome: a 4D flow CMR study

Journal of Cardiovascular Magnetic Resonance, 2019
Background Diseases of the descending aorta have emerged as a clinical issue in Marfan syndrome following improvements in proximal aorta surgical treatment and the consequent increase in life expectancy. Although a role for hemodynamic alterations in the
A. Guala, G. Teixido-Tura, L. Dux-Santoy, C. Granato, A. Ruiz-Muñoz, F. Valente, L. Galian-Gay, L. Gutiérrez, T. González-Alujas, K. M. Johnson, O. Wieben, A. Sao Avilés, A. Evangelista, J. Rodriguez-Palomares   +13 more
doaj   +1 more source

Advanced Electron Microscopy and Microcomputed Tomography Analysis of Single‐Crystal Ni‐Base Superalloys After Short‐Term Multiaxial Creep

Advanced Engineering Materials, EarlyView.
This work studies the anisotropic behavior of circular notched tensile specimens of Ni‐base superalloy single crystals during high‐temperature tensile creep along [001], [110], and [111]. Correlative scale‐bridging imaging of specimens reveals early rupture along [110] because 1) plastic deformation proceeds faster at notch center; 2) more (brittle ...
Leonardo Agudo Jácome, Lijie Cao, Christoph Somsen, Johannes Boes, René Hesse, Werner Theisen, Gunther Eggeler   +6 more
wiley   +1 more source

Unsteady polar fluid model of blood flow through tapered ω-shape stenosed artery: Effects of catheter and velocity slip

Ain Shams Engineering Journal, 2015
In this paper, we considered the pulsatile flow of blood through catheterized tapered artery in the presence of an ω-shaped stenosis. Blood flow is modelled as homogeneous incompressible couple stress fluid.
D. Srikanth, J.V. Ramana Reddy, Shubha Jain, Anup Kale   +3 more
doaj   +1 more source

Integrating particle tracking with computational fluid dynamics to assess haemodynamic perturbation by coronary artery stents.

PLoS ONE, 2022
AimsCoronary artery stents have profound effects on arterial function by altering fluid flow mass transport and wall shear stress. We developed a new integrated methodology to analyse the effects of stents on mass transport and shear stress to inform the
Luke Boldock, Amanda Inzoli, Silvia Bonardelli, Sarah Hsiao, Alberto Marzo, Andrew Narracott, Julian Gunn, Gabriele Dubini, Claudio Chiastra, Ian Halliday, Paul D Morris, Paul C Evans, Perrault C M   +12 more
doaj   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

Advanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ, Jörg Hohe, Martin Kördel, Michael Giese, Niklas Toffert, Christian Seidel, Olaf Rehme, Patrik Schneider, Oliver Focke, Elie Abi Aoun, Claas Falldorf, Beñat Gutierrez, Alexandra Kühn, Sven Torstrick-von der Lieth, Christoph Herden, Erik Johannsen, Jan‐Uwe R. Schmidt, Felix Winkelmann, Andreas Schott, Daniel Schott   +19 more
wiley   +1 more source