Numerical Analysis

Name: Numerical Analysis
Brand: Birkhauser Verlag AG
SKU: 9783764309398
Price: 1147 CZK
Availability: InStock

Proceedings of the Colloquium on Numerical Analysis Lausanne, October 11-13, 1976

Autor: J. Descloux, J. Marti

Jazyk:

Vazba: Brožovaná

Vydavatel: Birkhauser Verlag AG

Dostupnost: Skladem u dodavatele

Odesíláme za 5-8 dnů

1 147 Kč

Nowadays aluminium is essentially produced according to the Hall-H~roult process, in other words, by...

Informace o knize

Autor

J. Descloux, J. Marti

Jazyk

Angličtina

Vazba

Kniha - Brožovaná

Vydáno

1977

Stránek

248

EAN

9783764309398

ISBN

3764309393

Enbook ID

09214609

Vydavatel

Birkhauser Verlag AG

Hmotnost

455

Rozměry

170 x 244 x 18

Kompletní popis

Nowadays aluminium is essentially produced according to the Hall-H~roult process, in other words, by electrolysis of alumina A1 0 desolved in molten cryolite Na A1F at a 2 3 3 6 temperature of about 950 °C. In a reduction plant cells are connected in series. For technical and economical reasons, it is advisable to choose large nominal currents (150 kAle For such intensities, the electromagnetic effects in the cells become important. In particular, these effects bring about movements in the liauid metal, as well as interface variations in level, that are detrimental to efficiencv and energy consumption [l,~ . For an optimal design, it is necessary to predetermine the electromagnetic behaviour of each new typ of cells. It is specially necessary to calculate the repartition of the current density in each point of the cell (electric problem), and the magnetic induction produced in the liquid metal by the currents circulating in the cell itself, in the near cells and in the external conductors (magnetic problem). Electric problem formulation Stationary electric phenomena are described by the equations ~ . . . rotE=O (1) . . . divJ=O (2) t=f1 (3) The first equation can be replaced by t=-g;tdU (4) where U is the electric potential. J. -M. BLANC 131 ~ -+ We can eliminate E and J between the equations above. In an homogeneous material, we obtain a Laplace's equation (5) 4u=0 On surfaces separating material of different resistivities, . . . .

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Numerical Analysis

Proceedings of the Colloquium on Numerical Analysis Lausanne, October 11-13, 1976

Informace o knize

Kompletní popis

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