Hüttig, C. and Breuer, D. (2008) Scaling laws for internally heated Newtonian fluids in three-dimensional spherical geometry. European Geosciences Union - General Assembly, 2008-04-13 - 2008-04-18, Vienna (Austria).
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In a series of three-dimensional spherical simulations the effects of purely internally heated convection was studied to yield updated scaling laws for parameterized mantle convection models. The upper Rayleigh number and the viscosity contrast due to temperature were varied in over 56 cases to study the influence of these parameters on the quasi steady-state. A viscosity contrast up to the order of 109 was observed. The simulations were carried out using the new GAIA framework, consisting of a highly parallel solver for mantle convection in arbitrary geometries. Updated values for the Nusselt – Rayleigh scaling are presented together with a new mobility criterion to specify the stagnant lid regime. Furthermore, the parametric ranges of degree-one convection are presented along with appealing double-convective system effects.
|Document Type:||Conference or Workshop Item (Poster)|
|Title:||Scaling laws for internally heated Newtonian fluids in three-dimensional spherical geometry|
|In ISI Web of Science:||No|
|Series Name:||Geophysical Research Abstracts|
|Keywords:||Interior; Spherical simulations, internally heated convection|
|Event Title:||European Geosciences Union - General Assembly|
|Event Location:||Vienna (Austria)|
|Event Type:||international Conference|
|Event Dates:||2008-04-13 - 2008-04-18|
|Organizer:||European Geosciences Union|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Space (old)|
|HGF - Program Themes:||W EW - Erforschung des Weltraums|
|DLR - Research area:||Space|
|DLR - Program:||W EW - Erforschung des Weltraums|
|DLR - Research theme (Project):||W - Vorhaben Vergleichende Planetologie (old)|
|Institutes and Institutions:||Institute of Planetary Research > Planetary Physics|
|Deposited By:||Stefanie Hempel|
|Deposited On:||29 Apr 2008|
|Last Modified:||27 Apr 2009 12:54|
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