Cloaking via mapping for the heat equation
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Published version
Author(s)
Craster, Richard
Guenneau, S
Hutridurga Ramaiah, H
Pavliotis, G
Type
Journal Article
Abstract
This paper explores the concept of near-cloaking in the context of time-dependent
heat propagation. We show that after the lapse of a certain threshold time, the boundary measure-
ments for the homogeneous heat equation are close to the cloaked heat problem in a certain Sobolev
space norm irrespective of the density-conductivity pair in the cloaked region. A regularised trans-
formation media theory is employed to arrive at our results. Our proof relies on the study of the long
time behaviour of solutions to the parabolic problems with high contrast in density and conductivity
coefficients. It further relies on the study of boundary measurement estimates in the presence of small
defects in the context of steady conduction problem. We then present some numerical examples to illustrate our theoretical results.
heat propagation. We show that after the lapse of a certain threshold time, the boundary measure-
ments for the homogeneous heat equation are close to the cloaked heat problem in a certain Sobolev
space norm irrespective of the density-conductivity pair in the cloaked region. A regularised trans-
formation media theory is employed to arrive at our results. Our proof relies on the study of the long
time behaviour of solutions to the parabolic problems with high contrast in density and conductivity
coefficients. It further relies on the study of boundary measurement estimates in the presence of small
defects in the context of steady conduction problem. We then present some numerical examples to illustrate our theoretical results.
Date Issued
2018-07-17
Date Acceptance
2018-04-13
Citation
Multiscale Modeling and Simulation: A SIAM Interdisciplinary Journal, 2018, 16 (3), pp.1146-1174
ISSN
1540-3459
Publisher
Society for Industrial and Applied Mathematics
Start Page
1146
End Page
1174
Journal / Book Title
Multiscale Modeling and Simulation: A SIAM Interdisciplinary Journal
Volume
16
Issue
3
Copyright Statement
© 2018 SIAM. Published by SIAM under the terms of the Creative Commons 4.0 license (https://creativecommons.org/licenses/by/4.0/)
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Engineering & Physical Science Research Council (EPSRC)
Engineering & Physical Science Research Council (EPSRC)
Grant Number
EP/L024926/1
EP/L020564/1
EP/P031587/1
Subjects
Science & Technology
Physical Sciences
Mathematics, Interdisciplinary Applications
Physics, Mathematical
Mathematics
Physics
invisibility cloak
transformation thermodynamics
electric impedance tomography
asymptotic analysis
transformation optics
near-cloaking
parabolic equations
HELMHOLTZ-EQUATION
COMPUTATIONAL ELECTROMAGNETISM
TRANSFORMATION OPTICS
ASYMPTOTIC EXPANSIONS
SMALL INHOMOGENEITIES
APPROXIMATE CLOAKING
SMALL INCLUSIONS
VARIABLES
TRANSPARENCY
METAMATERIAL
0102 Applied Mathematics
Applied Mathematics
Publication Status
Published
Date Publish Online
2018-07-17