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2022 (4)

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Book
Physical Processes in Lakes
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Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Physical processes are keys for the status of a lake. In this Special Issue, the emphasis is on dissolved oxygen and on exchange of gases, energy and momentum between atmosphere and further mixing and consumption within the water. The studies presented relate to ice-free as well as ice-covered lakes. Field measurements are combined with theoretical approaches.


Book
Physical Processes in Lakes
Author:
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Physical processes are keys for the status of a lake. In this Special Issue, the emphasis is on dissolved oxygen and on exchange of gases, energy and momentum between atmosphere and further mixing and consumption within the water. The studies presented relate to ice-free as well as ice-covered lakes. Field measurements are combined with theoretical approaches.


Book
Physical Processes in Lakes
Author:
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Bookmark

Abstract

Physical processes are keys for the status of a lake. In this Special Issue, the emphasis is on dissolved oxygen and on exchange of gases, energy and momentum between atmosphere and further mixing and consumption within the water. The studies presented relate to ice-free as well as ice-covered lakes. Field measurements are combined with theoretical approaches.

Keywords

Technology: general issues --- History of engineering & technology --- Environmental science, engineering & technology --- hydrodynamic model --- bubble plume --- artificial mixing --- GLM --- Si3D --- dissolved gas --- Henry law --- total gas pressure --- ebullition --- greenhouse gases --- lacustrine waters --- diurnal variation --- hourly model --- water temperature --- dissolved oxygen --- shallow lakes --- and sediment heat flux --- water quality --- chlorophyll-a --- phosphorus --- phosphorus release --- full set of turbulent stresses --- Acoustic Doppler current profilers --- interbeam velocity correlations --- ice-covered lakes --- convectively-mixed layer --- anisotropic turbulence --- shallow lake --- ice-covered period --- ice phenology --- snow-ice cover thickness --- under-ice irradiance --- radiatively driven convection --- climate change --- 3D modelling --- stratification --- bubble plumes --- fractal --- lakes --- mixing --- multi-scale --- turbulence --- energy fluxes --- energy content --- reservoirs --- internal waves --- surface waves --- biogenic turbulence --- hydrodynamic model --- bubble plume --- artificial mixing --- GLM --- Si3D --- dissolved gas --- Henry law --- total gas pressure --- ebullition --- greenhouse gases --- lacustrine waters --- diurnal variation --- hourly model --- water temperature --- dissolved oxygen --- shallow lakes --- and sediment heat flux --- water quality --- chlorophyll-a --- phosphorus --- phosphorus release --- full set of turbulent stresses --- Acoustic Doppler current profilers --- interbeam velocity correlations --- ice-covered lakes --- convectively-mixed layer --- anisotropic turbulence --- shallow lake --- ice-covered period --- ice phenology --- snow-ice cover thickness --- under-ice irradiance --- radiatively driven convection --- climate change --- 3D modelling --- stratification --- bubble plumes --- fractal --- lakes --- mixing --- multi-scale --- turbulence --- energy fluxes --- energy content --- reservoirs --- internal waves --- surface waves --- biogenic turbulence


Book
Modeling and Simulation of Metallurgical Processes in Ironmaking and Steelmaking
Authors: --- ---
ISBN: 3036551549 3036551530 Year: 2022 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

In recent years, improving the sustainability of the steel industry and reducing its CO2 emissions has become a global focus. To achieve this goal, further process optimization in terms of energy and resource efficiency and the development of new processes and process routes are necessary. Modeling and simulation have established themselves as invaluable sources of information for otherwise unknown process parameters and as an alternative to plant trials that involves lower costs, risks, and time. Models also open up new possibilities for model-based control of metallurgical processes. This Special Issue focuses on recent advances in the modeling and simulation of unit processes in iron and steelmaking. It includes reviews on the fundamentals of modeling and simulation of metallurgical processes, as well as contributions from the areas of iron reduction/ironmaking, steelmaking via the primary and secondary route, and continuous casting.

Keywords

Technology: general issues --- History of engineering & technology --- liquid metals --- bubble generation --- bubble size distribution --- porous plugs --- bubble deformation --- drag force --- lift force --- mathematical modelling --- computational fluid dynamic --- slag heat recovery --- heat exchanger --- drying --- slag energy content --- heat recovery technology --- RecHeat --- rotary kiln --- reduction process --- numerical simulation --- pre-reduction --- scrap preheating --- electric arc furnace --- continuous charging --- turbulence modelling --- RANS/LES/DNS --- inflow condition --- model validation --- model application --- energy demand --- regression --- artificial neural network --- Gaussian process regression --- Köhle formula --- evaluation model --- quantitative relationship --- scrap melting --- mass transfer coefficient --- steelmaking process --- direct current --- arc impingement --- arc gap --- gas density --- electric arc --- magneto hydrodynamics --- computational fluid dynamics --- real-time model --- estimation --- model predictive control --- steel refining --- mathematical modeling --- carbon composite briquette --- blast furnace ironmaking --- reaction kinetics --- coke saving --- direct reduction --- Midrex --- HYL --- Rist diagram --- energy consumption --- profile optimization --- modelling --- machine learning --- steelmaking --- fuzzy modelling --- evolving modelling --- continuous casting --- near net shape casting --- twin roll (Bessemer) casting --- horizontal single belt casting --- n/a --- Köhle formula

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