Results 81 to 90 of about 617,651 (370)

Spherical-shell boundaries for two-dimensional compressible convection in a star [PDF]

open access: yesA&A 593, A121 (2016), 2016
Context: We study the impact of two-dimensional spherical shells on compressible convection. Realistic profiles for density and temperature from a one-dimensional stellar evolution code are used to produce a model of a large stellar convection zone representative of a young low-mass star.
arxiv   +1 more source

Self-Similar Accretion Flows with Convection

open access: yes, 1999
We consider height-integrated equations of an advection-dominated accretion flow (ADAF), assuming that there is no mass outflow. We include convection through a mixing length formalism.
Honma F.   +5 more
core   +2 more sources

Plumes in stellar convection zones [PDF]

open access: yes, 1999
All numerical simulations of compressible convection reveal the presence of strong downwards directed flows. Thanks to helioseismology, such plumes have now been detected also at the top of the solar convection zone, on super- granular scales.
Adrian   +29 more
core   +3 more sources

Impacts of Device Geometry and Layout on Temperature Profile during Large‐Area Photonic Curing

open access: yesAdvanced Engineering Materials, EarlyView.
The study investigates how gate geometry affects peak curing temperature during photonic curing of solution‐processed indium zinc oxide thin‐film transistors. Using 3D simulations and experimental validation, it reveals that larger gate areas and smaller aspect ratios increase curing temperature and thus improve transistor performance. Findings provide
Yasir Fatha Abed   +3 more
wiley   +1 more source

Effects of Radiation and Chemical Reaction on MHD Convective Flow over a Permeable Stretching Surface with Suction and Heat Generation

open access: yesWalailak Journal of Science and Technology, 2014
In this study, we analyze the effects of thermal radiation and chemical reaction on the steady 2 dimensional stagnation point flow of a viscous incompressible electrically conducting fluid over a stretching surface, with suction and heat generation.
Penem Mohan KRISNA   +2 more
doaj   +1 more source

Cold Pool Responses to Changes in Soil Moisture

open access: yesJournal of Advances in Modeling Earth Systems, 2020
This study examines the role of soil moisture in modulating convective cold pool properties in an idealized modeling framework that uses a cloud‐resolving model coupled to an interactive land surface model.
Aryeh J. Drager   +2 more
doaj   +1 more source

On angular momentum transport in convection-dominated accretion flows [PDF]

open access: yesAstrophys.J. 577 (2002) L31-L34, 2002
Convection-dominated accretion flow (CDAF) is a promising model to explain underluminous accreting black holes in X-ray binaries and galactic nuclei. I discuss effects of angular momentum transport in viscous hydrodynamical and MHD CDAFs. In hydrodynamical CDAFs, convection transports angular momentum inward, and this together with outward convection ...
arxiv   +1 more source

Convection in colloidal suspensions with particle-concentration-dependent viscosity

open access: yes, 2010
The onset of thermal convection in a horizontal layer of a colloidal suspension is investigated in terms of a continuum model for binary-fluid mixtures where the viscosity depends on the local concentration of colloidal particles.
A. Einstein   +36 more
core   +1 more source

Scalable Manufacturing of Radiation‐Tolerant Potentiometric Electrodes: A Systematic Transition from Laboratory to Semiautomated Fabrication

open access: yesAdvanced Engineering Materials, EarlyView.
Laboratory protocols for producing thin‐film pH electrodes for sterilized single‐use technologies have been successfully developed into a semiautomated workflow, with higher throughput and precision of membrane thickness. Accuracies are within 0.05 pH units versus ground truth, and uncertainty analysis reveals the largest sources of error to be derived
Bingyuan Zhao   +4 more
wiley   +1 more source

Convection in the Sun [PDF]

open access: yesInternational Astronomical Union Colloquium, 1990
AbstractThe present knowledge of the dynamics and structure of the solar convection zone is reviewed with the aim of checking current assumptions and conjectures against laboratory experiments and numerical modeling of thermal convection. Buoyancy is the only forcing considered. Rotation and magnetic fields are explicitly avoided.
openaire   +2 more sources

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