scholarly journals Multigrid preconditioners for the mixed finite element dynamical core of the LFRic atmospheric model

2020 ◽  
Vol 146 (733) ◽  
pp. 3917-3936 ◽  
Author(s):  
Christopher Maynard ◽  
Thomas Melvin ◽  
Eike Hermann Müller
Keyword(s):  
Finite Element ◽  
Mixed Finite Element ◽  
Atmospheric Model ◽  
Dynamical Core ◽  
Multigrid Preconditioners

Transport Schemes in GungHo

2021 ◽  
Author(s):  
James Kent
Keyword(s):  
Finite Element ◽  
Finite Volume ◽  
Mixed Finite Element ◽  
Method Of Lines ◽  
Finite Volume Methods ◽  
Kutta Method ◽  
Finite Volume Schemes ◽  
Dynamical Core ◽  
Runge Kutta Method ◽  
The Stability

<p>GungHo is the mixed finite-element dynamical core under development by the Met Office. A key component of the dynamical core is the transport scheme, which advects density, temperature, moisture, and the winds, throughout the atmosphere. Transport in GungHo is performed by finite-volume methods, to ensure conservation of certain quantaties. There are a range of different finite-volume schemes being considered for transport, including the Runge-Kutta/method-of-lines and COSMIC/Lin-Rood schemes. Additional horizontal/vertical splitting approaches are also under consideration, to improve the stability aspects of the model. Here we discuss these transport options and present results from the GungHo framework, featuring both prescribed velocity advection tests and full dry dynamical core tests. </p>

Analysis of a mixed finite-element pair proposed for an atmospheric dynamical core

2013 ◽  
Vol 139 (674) ◽  
pp. 1239-1254 ◽  
Author(s):  
Andrew Staniforth ◽  
Thomas Melvin ◽  
Colin Cotter
Keyword(s):  
Finite Element ◽  
Mixed Finite Element ◽  
Dynamical Core ◽  
Element Pair
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