scholarly journals New energy, angle momentum and entropy balance approach to modelling climate and macroturbulent atmospheric dynamics, heat and mass transfer at macroscale. II. Computational algorithm

2020 ◽  
Vol 0 (57) ◽  
pp. 104-113
Author(s):  
О. В. Глушков ◽  
О. Ю. Хецеліус ◽  
С. М. Степаненко ◽  
О. Н. Софронков ◽  
А. А. Свинаренко ◽  
...  
Author(s):  
O.Yu. Khetselius ◽  
A.V. Glushkov ◽  
A.N. Sofronkov ◽  
S.N. Stepanenko ◽  
A.A. Svinarenko

An generalized low-frequency approximation of energy, angle momentum and entropy balance relationships to modelling climate and macro-turbulent atmospheric dynamics, heat and mass transfer at macroscale is introduced and allow significantly to simplify the main fundamental equations. A new equilibrium approach to modelling the global mechanisms of climatic and macroturbulent atmospheric low-frequency processes, including heat and mass transfer processes, teleconnection effects, etc., is based on the use of equilibrium relations for entropy, energy, angular momentum, spectral theory of atmospheric macroturbulence and moisture turnover in connection with the continuity of forms of atmospheric circulation (teleconnection, genesis of fronts). The physical features of singularities in the fields of meteorological elements and the balance of the angular momentum as well as a generalized Arakawa-Schubert model are introduced and discussed.


2011 ◽  
Vol 241 (8) ◽  
pp. 2889-2897 ◽  
Author(s):  
Eckhard Krepper ◽  
Matthias Beyer ◽  
Dirk Lucas ◽  
Martin Schmidtke

2015 ◽  
Vol 15 (1) ◽  
pp. 13-16 ◽  
Author(s):  
V.I. Bondarenko ◽  
V.V. Bilousov ◽  
F.V. Nedopekin ◽  
J.I. Shalapko

Abstract The generic mathematical model and computational algorithm considering hydrodynamics, heat and mass transfer processes during casting and forming steel ingots and castings are offered. Usage domains for turbulent, convective and non-convective models are determined depending on ingot geometry and thermal overheating of the poured melt. The expert system is developed, enabling to choose a mathematical model depending on the physical statement of a problem.


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