Effect of finite precision on em simulations for high-contrast biological media at low frequencies

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

At low frequencies, biological media are characterized by extremely high permittivities. As a result, the most commonly used simulation methods, i.e. finite-difference time domain (FDTD), finite element method (FEM), and domain integral equations (DIE), suffer from severe limitations in accuracy. These limitations are caused by the round-off errors in finite-precision floating point operations. Finite precision causes error accumulation in FDTD due to the large number of time steps required to simulate one period and to maintain stability. In FEM, finite precision causes the numerical derivative to collapse due to the dependence on the mesh size. While the DIE is hardly influenced by the mesh size, the extreme permittivities cause a large difference in the order of magnitude of the various terms in the DIE.

Originele taal-2Engels
TitelProceedings of the 2019 21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019
Plaats van productiePiscataway
UitgeverijInstitute of Electrical and Electronics Engineers
Pagina's523-527
Aantal pagina's5
ISBN van elektronische versie978-1-7281-0563-5
DOI's
StatusGepubliceerd - sep 2019
Evenement21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019 - Granada, Spanje
Duur: 9 sep 201913 sep 2019

Congres

Congres21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019
LandSpanje
StadGranada
Periode9/09/1913/09/19

Vingerafdruk Duik in de onderzoeksthema's van 'Effect of finite precision on em simulations for high-contrast biological media at low frequencies'. Samen vormen ze een unieke vingerafdruk.

  • Citeer dit

    van Rossum, M. J. R. A., Mestrom, R. M. C., & van Beurden, M. C. (2019). Effect of finite precision on em simulations for high-contrast biological media at low frequencies. In Proceedings of the 2019 21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019 (blz. 523-527). [8879369] Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ICEAA.2019.8879369