Title: Distributed stray field calculation using the fast multipole method
Language: English
Authors: Palmesi, Pietro 
Qualification level: Doctoral
Advisor: Süss, Dieter 
Issue Date: 2018
Citation: 
Palmesi, P. (2018). Distributed stray field calculation using the fast multipole method [Dissertation, Technische Universität Wien]. reposiTUm. https://resolver.obvsg.at/urn:nbn:at:at-ubtuw:1-110392
Number of Pages: 111
Qualification level: Doctoral
Abstract: 
The long-range magnetic field is the most time-consuming part of micromagnetic simulations. Computational improvements can relieve problems related to this bottleneck. This work presents an effcient implementation of the Fast Multipole Method [FMM] for the magnetic scalar potential and stray field as used in micromagnetics. The novelty lies in extending FMM to linearly magnetized tetrahedral sources making it interesting also for other areas of computational physics. The near field is calculated directly, and the far field is approximated numerically using multipole expansion. This approach tackles important issues like the vectorial and continuous nature of the magnetic field. By using FMM the calculations scale linearly in time and memory and are distributed among many processors.
Keywords: Mikromagnetismus; Multipolentwicklung; Streufeldberechnung
micromagnetics; multipolexpansion; strayfield calculation
URI: https://resolver.obvsg.at/urn:nbn:at:at-ubtuw:1-110392
http://hdl.handle.net/20.500.12708/1799
Library ID: AC15042738
Organisation: E138 - Institut für Festkörperphysik 
Publication Type: Thesis
Hochschulschrift
Appears in Collections:Thesis

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