Results 11 to 20 of about 617,651 (370)

Properties of semi-convection and convective overshooting for massive stars [PDF]

open access: yes, 2013
Properties of semi-convection and core convective overshooting of stars with 15 $M_{\odot}$ and 30 $M_{\odot}$ are calculated in the present paper. New methods are used to deal with semi-convection. Different entropy gradient is used when adopting the Schwarzschild method and the Ledoux method which are used to confine the convective boundary and to ...
Ding, Cai Yun, Li, Yan
arxiv   +3 more sources

Solar-Like Oscillators in the Kepler Era: A Review

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Many late-type stars across the Milky Way exhibit observable pulsations similar to our Sun that open up a window into stellar interiors. The NASA Kepler mission, a space-based photometric telescope, measured the micro-magnitude luminosity fluctuations ...
Jason Jackiewicz
doaj   +1 more source

Study of convective heat transfer in flat plate solar collectors [PDF]

open access: yesITM Web of Conferences, 2019
The paper herein considers the study of convective heat transfer in flat plate solar collectors, as it is seen from the analysis on research of the heat transfer by a circular and flat tubes upon conforming the forced and free convections, placed ...
Amirgaliyev Yedilkhan   +6 more
doaj   +1 more source

Characterizing Convection Schemes Using Their Responses to Imposed Tendency Perturbations

open access: yesJournal of Advances in Modeling Earth Systems, 2021
Convection is usually parameterized in global climate models, and there are often large discrepancies between results obtained with different convection schemes.
Y. L. Hwong   +10 more
doaj   +1 more source

Two-Dimensional Structure of Flow Channels and Associated Upward Field-Aligned Currents: Model and Observations

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Flow bursts are a major component of transport within the plasma sheet and auroral oval (where they are referred to as flow channels), and lead to a variety of geomagnetic disturbances as they approach the inner plasma sheet (equatorward portion of the ...
Larry. R. Lyons   +5 more
doaj   +1 more source

Cloud‐Radiation Interactions and Their Contributions to Convective Self‐Aggregation

open access: yesJournal of Advances in Modeling Earth Systems, 2021
This study investigates the direct radiative‐convective processes that drive and maintain aggregation within convection‐permitting elongated channel (and smaller square) simulations of the UK Met Office Unified Model. Our simulations are configured using
Kieran N. Pope   +3 more
doaj   +1 more source

Observing Convective Aggregation [PDF]

open access: yesSurveys in Geophysics, 2017
Convective self-aggregation, the spontaneous organization of initially scattered convection into isolated convective clusters despite spatially homogeneous boundary conditions and forcing, was first recognized and studied in idealized numerical simulations.
Paquita Zuidema   +8 more
openaire   +8 more sources

Heat and water flux modeling in an earth dam

open access: yesWater Science and Technology, 2021
This study aims to identify the water flux in an earth dam using heat flux due to convection. Sixteen earth dam models were constructed in a hydraulic flume by varying geometrical and flow input parameters to identify heat and water flux.
Sushant Kumar   +2 more
doaj   +1 more source

Comments on “Mesoscale cellular convection: is it convection?” [PDF]

open access: yesTellus A: Dynamic Meteorology and Oceanography, 1985
Fiedler (1985) demonstrates the inadequacy of three convective instability theories in explaining the large aspect ratio of mesoscale cellular convection (MCC). As an alternative explanation, he suggests mesoscale entrainment instability (MEI), an instability resulting from the entrainment fluxes at the top of the mixed layer.DOI: 10.1111/j.1600-0870 ...
openaire   +3 more sources

Simulating deep convection with a shallow convection scheme [PDF]

open access: yesAtmospheric Chemistry and Physics, 2011
Abstract. Convective processes profoundly affect the global water and energy balance of our planet but remain a challenge for global climate modeling. Here we develop and investigate the suitability of a unified convection scheme, capable of handling both shallow and deep convection, to simulate cases of tropical oceanic convection, mid-latitude ...
Hohenegger, C., Bretherton, C.
openaire   +5 more sources

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