Asymptotic boundary element methods for thin conducting sheets

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June 2015, 8(3): 619-647. doi: 10.3934/dcdss.2015.8.619

Asymptotic boundary element methods for thin conducting sheets

Kersten Schmidt ^1, and Ralf Hiptmair ^2,

1.	Research Center MATHEON, Institut für Mathematik, Technische Universität Berlin, 10623 Berlin, Germany
2.	Seminar for Applied Mathematics, ETH Zurich, 8092 Zürich, Switzerland

Received November 2013 Revised June 2014 Published October 2014

Abstract
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Various asymptotic models for thin conducting sheets in computational electromagnetics describe them as closed hyper-surfaces equipped with linear local transmission conditions for the traces of electric and magnetic fields. The transmission conditions turn out to be singularly perturbed with respect to limit values of parameters depending on sheet thickness and conductivity. We consider the reformulation of the resulting transmission problems into boundary integral equations (BIE) and their Galerkin discretization by means of low-order boundary elements. We establish stability of the BIE and provide a priori $h$-convergence estimates.

Keywords: Boundary element method, transmission condition, asymptotic expansions, thin conducting sheets..

Mathematics Subject Classification: 65N38, 35C20, 35J25, 41A60, 35B40, 78M30, 78M3.

Citation: Kersten Schmidt, Ralf Hiptmair. Asymptotic boundary element methods for thin conducting sheets. Discrete & Continuous Dynamical Systems - S, 2015, 8 (3) : 619-647. doi: 10.3934/dcdss.2015.8.619

References:

[1]	R. A. Adams, Sobolev Spaces,, Academic Press, (1975). Google Scholar
[2]	A. Bendali, Boundary element solution of scattering problems relative to a generalized impedance boundary condition,, in Partial differential equations: Theory and numerical solution., 406 (2000), 10. Google Scholar
[3]	A. Bendali and K. Lemrabet, Asymptotic analysis of the scattering of a time-harmonic electromagnetic wave by a perfectly conducting metal coated with a thin dielectric shell,, Asymptotic Analysis, 57 (2008), 199. Google Scholar
[4]	A. Bendali and K. Lemrabet, The effect of a thin coating on the scattering of a time-harmonic wave for the Helmholtz equation,, SIAM J. Appl. Math., 56 (1996), 1664. doi: 10.1137/S0036139995281822. Google Scholar
[5]	D. Braess, Finite Elements: Theory, Fast Solvers, and Applications in Solid Mechanics,, 3rd edition, (2007). doi: 10.1088/0957-0233/13/9/704. Google Scholar
[6]	Concepts Development Team, Webpage of Numerical C++ Library Concepts 2,, URL , (2014). Google Scholar
[7]	B. Engquist and J.-C. Nédélec, Effective boundary conditions for acoustic and electromagnetic scattering in thin layers,, Technical report, (1993). Google Scholar
[8]	P. Frauenfelder and C. Lage, Concepts - An Object-Oriented Software Package for Partial Differential Equations,, Math. Model. Numer. Anal., 36 (2002), 937. doi: 10.1051/m2an:2002036. Google Scholar
[9]	H. Haddar, P. Joly and H. Nguyen, Generalized impedance boundary conditions for scattering by strongly absorbing obstacles: the scalar case,, Math. Models Methods Appl. Sci, 15 (2005), 1273. doi: 10.1142/S021820250500073X. Google Scholar
[10]	H. Haddar, P. Joly and H.-M. Nguyen, Generalized impedance boundary conditions for scattering problems from strongly absorbing obstacles: the case of Maxwell's equations,, Math. Models Meth. Appl. Sci., 18 (2008), 1787. doi: 10.1142/S0218202508003194. Google Scholar
[11]	T. Levi-Civita, La teoria elettrodinamica di Hertz di fronte ai fenomeni di induzione,, Rend. Lincei (5), 11 (1902), 75. Google Scholar
[12]	I. Mayergoyz and G. Bedrosian, On calculation of 3-D eddy currents in conducting and magnetic shells,, Magnetics, 31 (1995), 1319. doi: 10.1109/20.376271. Google Scholar
[13]	W. McLean, Strongly Elliptic Systems and Boundary Integral Equations,, Cambridge University Press, (2000). Google Scholar
[14]	T. Nakata, N. Takahashi, K. Fujiwara and Y. Shiraki, 3D magnetic field analysis using special elements,, Magnetics, 26 (1990), 2379. doi: 10.1109/20.104737. Google Scholar
[15]	C. Poignard, Asymptotics for steady-state voltage potentials in a bidimensional highly contrasted medium with thin layer,, Math. Meth. Appl. Sci., 31 (2008), 443. doi: 10.1002/mma.923. Google Scholar
[16]	C. Poignard, Approximate transmission conditions through a weakly oscillating thin layer,, Math. Meth. Appl. Sci., 32 (2009), 435. doi: 10.1002/mma.1045. Google Scholar
[17]	S. Sauter and C. Schwab, Boundary Element Methods,, Springer-Verlag, (2011). doi: 10.1007/978-3-540-68093-2. Google Scholar
[18]	K. Schmidt and A. Chernov, A unified analysis of transmission conditions for thin conducting sheets in the time-harmonic eddy current model,, SIAM J. Appl. Math, 73 (2013), 1980. doi: 10.1137/120901398. Google Scholar
[19]	K. Schmidt and R. Hiptmair, Asymptotic boundary element methods for thin conducting sheets,, Preprint 2013-15, (2013), 2013. Google Scholar
[20]	K. Schmidt and A. Chernov, Robust Families of Transmission Conditions of High Order for Thin Conducting Sheets,, INS Report 1102, (1102). Google Scholar
[21]	K. Schmidt and S. Tordeux, Asymptotic modelling of conductive thin sheets,, Z. Angew. Math. Phys., 61 (2010), 603. doi: 10.1007/s00033-009-0043-x. Google Scholar
[22]	K. Schmidt and S. Tordeux, High order transmission conditions for thin conductive sheets in magneto-quasistatics,, ESAIM: M2AN, 45 (2011), 1115. doi: 10.1051/m2an/2011009. Google Scholar
[23]	O. Steinbach, Numerische Näherungsverfahren für elliptische Randwertprobleme. Finite Elemente und Randelemente,, B.G. Teubner-Verlag, (2003). Google Scholar
[24]	O. Tozoni and I. Mayergoyz, Calculation of three-dimensional electromagnetic fields,, Technika, (1974). Google Scholar
[25]	L. Vernhet, generalized impedance boundary condition,, Math. Meth. Appl. Sci., 22 (1999), 587. Google Scholar

show all references

References:

[1]	R. A. Adams, Sobolev Spaces,, Academic Press, (1975). Google Scholar
[2]	A. Bendali, Boundary element solution of scattering problems relative to a generalized impedance boundary condition,, in Partial differential equations: Theory and numerical solution., 406 (2000), 10. Google Scholar
[3]	A. Bendali and K. Lemrabet, Asymptotic analysis of the scattering of a time-harmonic electromagnetic wave by a perfectly conducting metal coated with a thin dielectric shell,, Asymptotic Analysis, 57 (2008), 199. Google Scholar
[4]	A. Bendali and K. Lemrabet, The effect of a thin coating on the scattering of a time-harmonic wave for the Helmholtz equation,, SIAM J. Appl. Math., 56 (1996), 1664. doi: 10.1137/S0036139995281822. Google Scholar
[5]	D. Braess, Finite Elements: Theory, Fast Solvers, and Applications in Solid Mechanics,, 3rd edition, (2007). doi: 10.1088/0957-0233/13/9/704. Google Scholar
[6]	Concepts Development Team, Webpage of Numerical C++ Library Concepts 2,, URL , (2014). Google Scholar
[7]	B. Engquist and J.-C. Nédélec, Effective boundary conditions for acoustic and electromagnetic scattering in thin layers,, Technical report, (1993). Google Scholar
[8]	P. Frauenfelder and C. Lage, Concepts - An Object-Oriented Software Package for Partial Differential Equations,, Math. Model. Numer. Anal., 36 (2002), 937. doi: 10.1051/m2an:2002036. Google Scholar
[9]	H. Haddar, P. Joly and H. Nguyen, Generalized impedance boundary conditions for scattering by strongly absorbing obstacles: the scalar case,, Math. Models Methods Appl. Sci, 15 (2005), 1273. doi: 10.1142/S021820250500073X. Google Scholar
[10]	H. Haddar, P. Joly and H.-M. Nguyen, Generalized impedance boundary conditions for scattering problems from strongly absorbing obstacles: the case of Maxwell's equations,, Math. Models Meth. Appl. Sci., 18 (2008), 1787. doi: 10.1142/S0218202508003194. Google Scholar
[11]	T. Levi-Civita, La teoria elettrodinamica di Hertz di fronte ai fenomeni di induzione,, Rend. Lincei (5), 11 (1902), 75. Google Scholar
[12]	I. Mayergoyz and G. Bedrosian, On calculation of 3-D eddy currents in conducting and magnetic shells,, Magnetics, 31 (1995), 1319. doi: 10.1109/20.376271. Google Scholar
[13]	W. McLean, Strongly Elliptic Systems and Boundary Integral Equations,, Cambridge University Press, (2000). Google Scholar
[14]	T. Nakata, N. Takahashi, K. Fujiwara and Y. Shiraki, 3D magnetic field analysis using special elements,, Magnetics, 26 (1990), 2379. doi: 10.1109/20.104737. Google Scholar
[15]	C. Poignard, Asymptotics for steady-state voltage potentials in a bidimensional highly contrasted medium with thin layer,, Math. Meth. Appl. Sci., 31 (2008), 443. doi: 10.1002/mma.923. Google Scholar
[16]	C. Poignard, Approximate transmission conditions through a weakly oscillating thin layer,, Math. Meth. Appl. Sci., 32 (2009), 435. doi: 10.1002/mma.1045. Google Scholar
[17]	S. Sauter and C. Schwab, Boundary Element Methods,, Springer-Verlag, (2011). doi: 10.1007/978-3-540-68093-2. Google Scholar
[18]	K. Schmidt and A. Chernov, A unified analysis of transmission conditions for thin conducting sheets in the time-harmonic eddy current model,, SIAM J. Appl. Math, 73 (2013), 1980. doi: 10.1137/120901398. Google Scholar
[19]	K. Schmidt and R. Hiptmair, Asymptotic boundary element methods for thin conducting sheets,, Preprint 2013-15, (2013), 2013. Google Scholar
[20]	K. Schmidt and A. Chernov, Robust Families of Transmission Conditions of High Order for Thin Conducting Sheets,, INS Report 1102, (1102). Google Scholar
[21]	K. Schmidt and S. Tordeux, Asymptotic modelling of conductive thin sheets,, Z. Angew. Math. Phys., 61 (2010), 603. doi: 10.1007/s00033-009-0043-x. Google Scholar
[22]	K. Schmidt and S. Tordeux, High order transmission conditions for thin conductive sheets in magneto-quasistatics,, ESAIM: M2AN, 45 (2011), 1115. doi: 10.1051/m2an/2011009. Google Scholar
[23]	O. Steinbach, Numerische Näherungsverfahren für elliptische Randwertprobleme. Finite Elemente und Randelemente,, B.G. Teubner-Verlag, (2003). Google Scholar
[24]	O. Tozoni and I. Mayergoyz, Calculation of three-dimensional electromagnetic fields,, Technika, (1974). Google Scholar
[25]	L. Vernhet, generalized impedance boundary condition,, Math. Meth. Appl. Sci., 22 (1999), 587. Google Scholar

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