Results 81 to 90 of about 473,902 (367)
Problems of Astrophysical Turbulent Convection: Thermal convection in a layer without boundaries [PDF]
in Procs 2010 CTR Summer Program, P. Moin (ed.), pp. 475-484,
Stanford University, 2010, 2011 Thermal convection in fluid layers heated from below are usually realized experimentally as well as treated theoretically with fixed boundaries on which conditions for the temperature and the velocity field are prescribed. The thermal and velocity boundary layers attached to the upper and lower boundaries determine to a large extent the properties of ...
arxiv
Topology optimisation for natural convection problems [PDF]
International Journal for Numerical Methods in Fluids, 2014 SummaryThis paper demonstrates the application of the density‐based topology optimisation approach for the design of heat sinks and micropumps based on natural convection effects. The problems are modelled under the assumptions of steady‐state laminar flow using the incompressible Navier–Stokes equations coupled to the convection‐diffusion equation ...
Joe Alexandersen +3 more
openaire +4 more sources
Spray‐Assisted Fabrication of Cellulose Photonic Pigments on Superhydrophobic Surfaces
Advanced Materials, EarlyView.A method to directly produce structurally colored microparticles by drying cholesteric cellulose nanocrystal microdroplets on a superhydrophobic surface is reported. This approach has several key advantages that can unlock large‐scale fabrication of sustainable photonic pigments, including exploiting existing industrial techniques (e.g. aerosolization),
Jianing Song +7 more
wiley +1 more source
The influence of nanofluid PH on natural convection [PDF]
, 2016 The vast majority of experimental studies of nanofluids under natural convection have shown that the heat transfer rate decreases in contrast to observations of increased heat transfer rate for forced convection and boiling heat transfer. This surprising
Hardalupas, I, Kouloulias, K, Sergis, A
core
Heat transfer enhancement and reduction by poylmer additives in turbulent Rayleigh Benard convection [PDF]
arXiv, 2010 This letter confirms the existence of heat transfer enhancement (HTE) and reduction (HTR) in turbulent natural convection with polymer additives. HTE and HTR were numerically predicted by Benzi et al.(PRL, 104, 024502, 2010) in homogenous turbulent convection, but experiments by Ahlers & Nikolaenko(PRL, 104, 034503, 2010) in turbulent natural ...
arxiv
The effects of transient heat flux on the tube in contact with the natural convection, on enthalpy and entropy generation, for developed laminar flow of fluid with high Prandtl number [PDF]
Chemical Review and Letters, 2019 Heat flux is passed through the tube wall with natural convection in a tube wall of developed laminar flow. Tubes are used to find the best case with the minimum enthalpy and entropy generation.
Reza Kakulvand
doaj +1 more source
Engineering Magnetotactic Bacteria as Medical Microrobots
Advanced Materials, EarlyView.Magnetotactic bacteria (MTB) are living microorganisms that produce magnetosomes for navigation using the Earth's geomagnetic field. Their built‐in magnetic components, along with their intrinsic and/or modified biological functions, make them one of the most promising platforms for making future living and programmable microrobots.
Jiaqi Wang +9 more
wiley +1 more source
Numerical Analysis of Turbulent Mixed Convection in Vertical Annular Channel
Yuanzineng kexue jishu, 2023 Reactor cavity cooling system (RCCS) is a competitive residual heat removal scheme for small modular reactors. In this paper, the RCCS has been simplified to a scenario that ascending air flow is got heated in vertical annular channels and driven by ...
HU Xiangjie;WEN Jiming;GAO Puzhen;TIAN Ruifeng
doaj
Advanced Materials, EarlyView.Wearable sensors, empowered by AI and smart materials, revolutionize healthcare by enabling intelligent disease diagnosis, personalized therapy, and seamless health monitoring without disrupting daily life. This review explores cutting‐edge advancements in smart materials and AI‐driven technologies that empower wearable sensors for diagnostics and ...
Shuwen Chen +14 more
wiley +1 more source
Advanced Materials, EarlyView.The electronic configuration of Mn single‐atom sites is regulated from low‐spin to high‐spin states by embedding well‐defined molybdenum phosphide nanocrystals nearby (MoP@MnSAC‐NC). The electronic phosphide‐support interaction between MoP and Mn single atoms drives the electronic structure transition in Mn sites from low‐spin to high‐spin states, and ...
Zuyang Luo +9 more
wiley +1 more source