Del 36 - Progress in Nonlinear Differential Equations and Their Applications
Variational Problems with Concentration
Inbunden, Engelska, 1999
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To start with we describe two applications of the theory to be developed in this monograph: Bernoulli's free-boundary problem and the plasma problem. Bernoulli's free-boundary problem This problem arises in electrostatics, fluid dynamics, optimal insulation, and electro chemistry. In electrostatic terms the task is to design an annular con denser consisting of a prescribed conducting surface 80. and an unknown conduc tor A such that the electric field 'Vu is constant in magnitude on the surface 8A of the second conductor (Figure 1.1). This leads to the following free-boundary problem for the electric potential u. -~u 0 in 0. \A, u 0 on 80., u 1 on 8A, 8u Q on 8A. 811 The unknowns are the free boundary 8A and the potential u. In optimal in sulation problems the domain 0. \ A represents the insulation layer. Given the exterior boundary 80. the problem is to design an insulating layer 0. \ A of given volume which minimizes the heat or current leakage from A to the environment ]R.n \ n. The heat leakage per unit time is the capacity of the set A with respect to n. Thus we seek to minimize the capacity among all sets A c 0. of equal volume.
Produktinformation
- Utgivningsdatum1999-07-01
- Mått155 x 235 x 15 mm
- Vikt442 g
- FormatInbunden
- SpråkEngelska
- SerieProgress in Nonlinear Differential Equations and Their Applications
- Antal sidor163
- Upplaga1999
- FörlagBirkhauser Verlag AG
- ISBN9783764361365