Results 61 to 70 of about 88,153 (317)

A Comparison of Newtonian and Non-Newtonian Models for Simulating Stenosis Development at the Bifurcation of the Carotid Artery

Fluids, 2023
Blood is a shear-thinning non-Newtonian fluid in which the viscosity reduces with the shear rate. When simulating arterial flow, it is well established that the non-Newtonian nature is important in the smallest vessels; however, there is no consistent ...
Aikaterini C. Stamou, Jovana Radulovic, James M. Buick   +2 more
doaj   +1 more source

Omnidirectional and Multi‐Material In Situ 3D Printing Using Acoustic Levitation

Advanced Materials Technologies, EarlyView.
An acoustophoretic 3D fabrication system enabling omnidirectional, multi‐material in situ printing is presented via acoustic levitation. Utilizing a phased array of transducers (PAT), it generates acoustophoretic forces for levitating and transporting materials in mid‐air, allowing precise, contactless, and voxel‐by‐voxel printing onto complex ...
Hongyi Chen, Shubhi Bansal, Diego Martinez Plasencia, Lucy Di‐Silvio, Jie Huang, Sriram Subramanian, Ryuji Hirayama   +6 more
wiley   +1 more source

Assessment of the Lubricity of Grease‐Sealing Rotary Shaft Seals Based on Grease Properties

Chemical Engineering &Technology, Volume 46, Issue 1, Page 53-60, January 2023., 2023
Grease‐lubricated rotary shaft sealing systems have an increased risk of starved lubrication. For this work, the lubricity of 23 greases was first evaluated and then correlated with grease properties. The results show which properties correlate with the lubricity of the greases and how the lubricity of the grease can be predicted on the basis of short ...
Susanne Hahn, Simon Feldmeth, Frank Bauer   +2 more
wiley   +1 more source

Mathematical Analysis of Casson Fluid Model for Blood Rheology in Stenosed Narrow Arteries

Journal of Applied Mathematics, 2013
The flow of blood through a narrow artery with bell-shaped stenosis is investigated, treating blood as Casson fluid. Present results are compared with the results of the Herschel-Bulkley fluid model obtained by Misra and Shit (2006) for the same geometry.
J. Venkatesan, D. S. Sankar, K. Hemalatha, Yazariah Yatim   +3 more
doaj   +1 more source

Miniaturized Devices for On‐the‐Spot Generation of Small‐Diameter Vascular Grafts

Advanced Materials Technologies, EarlyView.
An intracorporeal extrusion device is developed for on‐the‐spot generation of vascular grafts with tunable diameters spanning from 1 to 6 mm. The device uses biomimetic polymers and light, to promptly obtaining biocompatible and high‐burst pressure‐resistant grafts.
Deyanira Hernandez‐Sanchez, Maxime‐Emmanuel Comtois‐Bona, Antony El‐Khoury, Sergio David Garcia Schejtman, Aidan Macadam, Juan‐David Figueroa‐Alegria, Jesus M. Calderon‐Torres, Irene Guzmán‐Soto, Marc Ruel, Erik J. Suuronen, Marcelo Muñoz, Emilio I. Alarcon   +11 more
wiley   +1 more source

Influence of High Pressure Drop Rates on Fatigue Crack Growth

Chemical Engineering &Technology, Volume 46, Issue 1, Page 45-52, January 2023., 2023
Hydraulic components are subjected to varying loads, limiting their lifetime. Accelerating fatigue studies through high‐frequency pulsation would decrease costs and time to market. However, the fluid‐structure interaction causes a time‐dependent fatigue load.
Lukas Michiels, Marcus Geimer
wiley   +1 more source

The Frequency‐Domain Lattice Boltzmann Method (FreqD‐LBM): A Versatile Tool to Predict the QCM Response Induced by Structured Samples

Advanced Theory and Simulations, EarlyView.
FreqD‐LBM simulates the oscillatory flow at the surface of a QCM‐D resonator in the presence of structured adsorbates. It derives shifts of frequency and bandwidth (equivalent to dissipation) on different overtones. Applications include rough surfaces, adsorbed rigid particles, adsorbed viscoelastic particles, spheres floating freely above the surface,
Diethelm Johannsmann, Paul Häusner, Arne Langhoff, Christian Leppin, Ilya Reviakine, Viktor Vanoppen   +5 more
wiley   +1 more source

Dynamic Friction Model for the Investigation of Stick‐Slip Oscillations

Chemical Engineering &Technology, Volume 46, Issue 1, Page 29-36, January 2023., 2023
An efficient dynamic friction model based on the Stribeck curve is presented, which allows to investigate the influencing parameters on the stick‐slip effect through finite element simulations. The simulation of a tribometer test proofs that the model correlates well with the tribometer test results.
Martin Wittmaack, Markus André, Katharina Schmitz   +2 more
wiley   +1 more source

Heat Transfer in Non-Newtonian Flows by a Hybrid Immersed Boundary–Lattice Boltzmann and Finite Difference Method

Applied Sciences, 2018
A hybrid immersed boundary–lattice Boltzmann and finite difference method for fluid–structure interaction and heat transfer in non-Newtonian flow is presented.
Li Wang, Fang-Bao Tian
doaj   +1 more source

Visualization of Word Usage in Fluid Mechanics Abstracts [PDF]

arXiv, 2009
The fluid dynamics video linked in the document shows how `keywords' from abstracts contained in three journals--Physics of Fluids (A) from 1970, Experiments in Fluids from 1983, and Journal of Fluid Mechanics from 1954--have changed over time.
arxiv