Results 81 to 90 of about 563,653 (367)

Solar Convection and Magneto-Convection Simulations

open access: yes, 2001
8 pages, 10 ...
Stein, R.F., Bercik, D., Nordlund, A.
openaire   +2 more sources

Trans‐Conductive Melt Pool Scaling and its Implications for Parameter Transfer in Laser Powder Bed Fusion for Metals with High Thermal Diffusivity

open access: yesAdvanced Engineering Materials, EarlyView.
Developing process parameters for the laser‐based Powder Bed Fusion of metals can be a tedious task. Based on melt pool depth, the process parameters are transferable to different laser scan speeds. For this, understanding the melt pool scaling behavior is essential, particularly for materials with high thermal diffusivity, as a change in scaling ...
Markus Döring   +2 more
wiley   +1 more source

THERMAL TRANSFERS IN WET HYPERBARIC ENVIRONMENT [PDF]

open access: yesAnnals: Series on engineering sciences (Academy of Romanian Scientists), 2014
The heat losses of human body are greater in underwater environment than in dry, normal atmosphere, due to the great heat capacity of water. Body temperature of divers in immersion was studied taking into account the pressure the divers are subjected to.
Tamara STANCIU   +2 more
doaj  

High-resolution calculations of the solar global convection with the reduced speed of sound technique: I. The structure of the convection and the magnetic field without the rotation [PDF]

open access: yes, 2014
We carry out non-rotating high-resolution calculations of the solar global convection, which resolve convective scales of less than 10 Mm. To cope with the low Mach number conditions in the lower convection zone, we use the reduced speed of sound technique (RSST), which is simple to implement and requires only local communication in the parallel ...
arxiv   +1 more source

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

Patterns and bifurcations in low-Prandtl number Rayleigh-Benard convection

open access: yes, 2009
We present a detailed bifurcation structure and associated flow patterns for low-Prandtl number ($P=0.0002, 0.002, 0.005, 0.02$) Rayleigh-B\'{e}nard convection near its onset.
Mishra, Pankaj Kumar   +2 more
core   +1 more source

Analysis of Temperature and Stress Distribution on the Bond Properties of Hybrid Tailored Formed Components

open access: yesAdvanced Engineering Materials, EarlyView.
Hybrid materials enable high‐performance components but are challenging to process. This study explores an inductive heating concept with spray cooling for steel–aluminum specimens in a two‐step process including friction welding and cup backward extrusion.
Armin Piwek   +7 more
wiley   +1 more source

Granulation and Convectional Driving on Stellar Surfaces [PDF]

open access: yesApJL, 979:L39 (5pp), 2025
Surface convection is important for the presence of magnetic activity at stars. So far, this convection is thought to be a result of heating from below, where convection cells rise and break up. New models reveal that surface convection is instead strongly driven by cooling from above.
arxiv   +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

Thermal convection in Earth's inner core with phase change at its boundary [PDF]

open access: yes, 2013
Inner core translation, with solidification on one hemisphere and melting on the other, provides a promising basis for understanding the hemispherical dichotomy of the inner core, as well as the anomalous stable layer observed at the base of the outer ...
Alboussière, Thierry   +2 more
core   +1 more source

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