Physical modeling studies of electrolyte flow due to gas evolution and some aspects of bubble behavior in advanced Hall cells: Part III. predicting the performance of advanced Hall cells

1996 ◽  
Vol 27 (1) ◽  
pp. 19-27 ◽  
Author(s):  
R. Shekhar ◽  
J. W. Evans
Keyword(s):  
Physical Modeling ◽  
Gas Evolution ◽  
Bubble Behavior ◽  
Electrolyte Flow ◽  
Modeling Studies

AN ARTIFICIAL SURFING REEF IN SÃO PEDRO DO ESTORIL BEACH, PORTUGAL: NUMERICAL AND PHYSICAL MODELING STUDIES

2009 ◽  
Author(s):  
Conceição Fortes ◽  
Maria da Graça Neves ◽  
Ana Mendonça ◽  
Liliana Pinheiro ◽  
Luís Leite ◽  
...  
Keyword(s):  
Physical Modeling ◽  
Modeling Studies

scholarly journals Plume-Induced Subduction Initiation: Revisiting Models and Observations

2021 ◽  
Vol 9 ◽  
Author(s):  
Marzieh Baes ◽  
Robert J. Stern ◽  
Scott Whattam ◽  
Taras V. Gerya ◽  
Stephan V. Sobolev
Keyword(s):  
Mantle Plume ◽  
Physical Modeling ◽  
Temporal Variations ◽  
Geochemical Data ◽  
Lithospheric Deformation ◽  
Subduction Initiation ◽  
Modeling Studies ◽  
Deformation Regime ◽  
Geochemical Studies ◽  
Weak Zones

Subduction initiation induced by a hot and buoyant mantle plume head is unique among proposed subduction initiation mechanisms because it does not require pre-existing weak zones or other forces for lithospheric collapse. Since recognition of the first evidence of subduction nucleation induced by a mantle plume in the Late Cretaceous Caribbean realm, the number of studies focusing on other natural examples has grown. Here, we review numerical and physical modeling and geological-geochemical studies which have been carried out thus far to investigate onset of a new subduction zone caused by impingement of a mantle plume head. As geological-geochemical data suggests that plume-lithosphere interactions have long been important - spanning from the Archean to the present - modeling studies provide valuable information on the spatial and temporal variations in lithospheric deformation induced by these interactions. Numerical and physical modeling studies, ranging from regional to global scales, illustrate the key role of plume buoyancy, lithospheric strength and magmatic weakening above the plume head on plume-lithosphere interactions. Lithospheric/crustal heterogeneities, pre-existing lithospheric weak zones and external compressional/extensional forces may also change the deformation regime caused by plume-lithosphere interaction.

scholarly journals Effect of electrolyte flow on a gas evolution electrode

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Soufiane Abdelghani-Idrissi ◽  
Nicolas Dubouis ◽  
Alexis Grimaud ◽  
Philippe Stevens ◽  
Gwenaëlle Toussaint ◽  
...  
Keyword(s):  
Analytical Model ◽  
Electrical Power ◽  
Hydrodynamic Resistance ◽  
Electrolysis Cell ◽  
Gas Evolution ◽  
Electrolyte Flow ◽  
Whole Process ◽  
Viscous Losses ◽  
Viscous Loss ◽  
Zinc Air Batteries

AbstractIn this study, the effect of flow of the electrolyte on an electrolysis cell and a zinc cell is investigated. The gain of energy brought by the flow is discussed and compared to the viscous losses in the cells. We point out that the balance between the gained electrical power and the viscous loss power is positive only if the hydrodynamic resistance of the circuit is correctly designed and further comment on the economical viability of the whole process. A model of the studied phenomena is proposed in the last section. This analytical model captures the dynamics of the process, gives the optimal flowing conditions and the limits of the energetical rentability of the process. This study shows that the use of flowing electrolyte in zinc–air batteries can be energetically profitable with the appropriate flowing conditions.

Mathematical Simulation and Physical Modeling of Self-Source Magnetization by Liquid Electrolyte Flow

2020 ◽  
Vol 982 ◽  
pp. 165-172
Author(s):  
Sheng Hao Li ◽  
Ao Huang ◽  
Yun Tao Qu ◽  
Xin Lu ◽  
Hua Zhi Gu ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Mathematical Model ◽  
Mathematical Simulation ◽  
Molten Steel ◽  
Physical Modeling ◽  
Superposition Principle ◽  
Liquid Electrolyte ◽  
Magnetic Flux Density ◽  
Magnetic Vector Potential ◽  
Electrolyte Flow

With the increasing requirements for steel quality, the refining conditions are increasing strict. The high-speed movement of molten steel under mechanical or pneumatic agitation can uniform the temperature and composition, and accelerate the collision of the inclusions to eliminate. However, the electromagnetic field has an important influence on the removal of inclusions in steel and the corrosion of refractory materials. The magnetic phenomenon caused by the movement of molten steel needs to be explored. Considering the complexity of high temperature thermal simulation, this work adopted the physical modeling combined with mathematical simulation method, saturated sodium chloride solution was selected to simulate molten steel as a liquid electrolyte, the magnetic phenomenon caused by solution motion was tested and analyzed, and mathematical model of solution motion magnetization was based on discharge mechanism and magnetic vector potential superposition principle, then the variation law of spatial magnetic field generated by liquid electrolyte flow was discussed. The results show that the simulation results agree with that of the physical modeling, and the mathematical model is promising for prediction of the magnetic field generated by liquid electrolyte flow. Under a constant flow speed of 2000 r/min, a magnetic field with magnetic flux density up to 0.15 Gs was produced, which has a significant effect on the refractory corrosion and removal of impurities in the molten steel.

Sign in / Sign up

Export Citation Format

Share Document