Results 11 to 20 of about 1,726 (195)
Micromachines, 2021 Inertial microfluidics enables fluid and particle manipulation for biomedical and clinical applications. Herein, we developed a simple semicircular microchannel with an ultra-low aspect ratio to interrogate the unique formations of the helical vortex and
Shaofei Shen, Xin Wang, Yanbing Niu
doaj +2 more sources
, 2007 Le but cette étude est de procéder à des simulations numériques tridimensionnelles (3-D) de l'écoulement d'un fluide viscoélastique de Phan-Thien-Tanner dans une conduite de section carrée courbée à 180°. On considère tout particulièrement l'apparition d'écoulements secondaires (vortex de Dean).
Helin, Lionel +3 more
openaire +2 more sources
Etude numérique des Vortex de Dean dans un écoulement d'un fluide viscoélastique dans une conduite courbe [PDF]
, 2011 Le présent travail est une synthèse de simulations numériques des écoulements de fluides viscoélastiques par la méthode des volumes finis. Pour étudier l'effet de l'élasticité sur les vortex de Dean le nombre de Deborah est varié de 0.1 à 0.5, l'effet de la géométrie est étudié en variant le taux de courbure de 2.5 à 20 et le rapport d'aspect de 1 à 12.
Boutabaa, Mohamed, Mompean, Gilmar
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Developing Micro/Nanostructured Fluidic Mixing Technology for Biomedical Applications. [PDF]
Adv Sci (Weinh)This review critically evaluates how micro/nanostructured mixing technologies are redefining biomedical research. By synergizing fundamental analysis, numerical modeling, structural design, and external field manipulation, these systems attain unprecedented control over mass transport.
Wang J, Chen H, Fang Y, Zhao Y.
europepmc +2 more sources
, 2013 Le travail présenté porte sur les vortex de Dean qui s’opèrent dans les conduites courbes. Les simulations numériques sont faites pour un fluide de Phan-Thien-Tanner et un fluide newtonien s’écoulant à des faibles nombres de Reynolds (Re) dans une conduite courbe à section carrée. Le nombre de Deborah (De) varie de 0 à 0,6. La méthode des volumes finis
Boutabaa, Mohammed, Mompean, Gilmar
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Arab Journal of Basic and Applied Sciences, 2021 Our study probes the impact of an exponentially decaying/growing time-dependent pressure gradient on unsteady Dean flow in a curved concentric cylinder.
Basant K. Jha, Dauda Gambo
doaj +1 more source
Heat transfer enhancement in a spiral plate heat exchanger model using continuous rods [PDF]
Journal of Heat and Mass Transfer Research, 2020 This study presents an innovative and simple way to increase the rate of heat transfer in a spiral plate heat exchanger model. Several circular cross-section rods, as continuous vortex generators, have been inserted within the spiral plate heat exchanger
Rahim Hassanzadeh, Sohail Nasrollahzadeh
doaj +1 more source
An efficient deep learning model for brain tumour detection with privacy preservation
CAAI Transactions on Intelligence Technology, EarlyView., 2023 Abstract Internet of medical things (IoMT) is becoming more prevalent in healthcare applications as a result of current AI advancements, helping to improve our quality of life and ensure a sustainable health system. IoMT systems with cutting‐edge scientific capabilities are capable of detecting, transmitting, learning and reasoning.
Mujeeb Ur Rehman +8 more
wiley +1 more source
Mixing Performance of a Passive Micromixer Based on Multiple Baffles and Submergence Scheme
Micromachines, 2023 A novel passive micromixer based on multiple baffles and a submergence scheme was designed, and its mixing performance was simulated over a wide range of Reynolds numbers ranging from 0.1 to 80.
Makhsuda Juraeva, Dong-Jin Kang
doaj +1 more source
Dean Vortex for Laminar Flows in Curved Pipes with Various Cross-Sections
Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 2020 Curved pipes flows are encountered in different areas such as heat transfer, chaotic mixing, separation of mixtures in pipes, or blood circulation among others and exhibit a variety of characteristics depending on the ranges of Dean numbers and pipe curvatures.
Siham Ajgoun +2 more
openaire +2 more sources