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Numerical Analysis of Thermal Distributions and Localized Melting in Solids

Unkelbach, Wilhelm (2022)
Numerical Analysis of Thermal Distributions and Localized Melting in Solids.
Technische Universität Darmstadt
doi: 10.26083/tuprints-00022968
Masterarbeit, Erstveröffentlichung, Verlagsversion

Kurzbeschreibung (Abstract)

Analytic solutions for heat transfer problems are limited to simple geometries and boundary conditions. This thesis aims to investigate numerical methods for solving transient heat transfer problems, with particular emphasis on problems involving localized heating that can lead to phase change. Such problems are of increasing importance in modelling additive manufacturing processes. Heat transfer is present in most engineering applications. Complex problems require numerical solutions which involve complex geometries, non-uniform boundary conditions and transient temperature history. For such problems, finite difference and finite element solution techniques have been developed. This thesis introduces the basic numerical models for finite difference and finite element calculations. Then the found calculation problems are employed to solve validation problems and generic heat transfer problems. A comparison is drawn to commercial code, namely Abaqus. Finally, melting and freezing processes are modelled and evaluated.

Typ des Eintrags: Masterarbeit
Erschienen: 2022
Autor(en): Unkelbach, Wilhelm
Art des Eintrags: Erstveröffentlichung
Titel: Numerical Analysis of Thermal Distributions and Localized Melting in Solids
Sprache: Englisch
Referenten: Stephan, Prof. Dr. Peter ; Gambaryan-Roisman, Apl. Prof. Tatiana ; Taggart, Prof. Dr. David G.
Publikationsjahr: 2022
Ort: Darmstadt
Kollation: x, 98 Seiten
DOI: 10.26083/tuprints-00022968
URL / URN: https://tuprints.ulb.tu-darmstadt.de/22968
Kurzbeschreibung (Abstract):

Analytic solutions for heat transfer problems are limited to simple geometries and boundary conditions. This thesis aims to investigate numerical methods for solving transient heat transfer problems, with particular emphasis on problems involving localized heating that can lead to phase change. Such problems are of increasing importance in modelling additive manufacturing processes. Heat transfer is present in most engineering applications. Complex problems require numerical solutions which involve complex geometries, non-uniform boundary conditions and transient temperature history. For such problems, finite difference and finite element solution techniques have been developed. This thesis introduces the basic numerical models for finite difference and finite element calculations. Then the found calculation problems are employed to solve validation problems and generic heat transfer problems. A comparison is drawn to commercial code, namely Abaqus. Finally, melting and freezing processes are modelled and evaluated.

Status: Verlagsversion
URN: urn:nbn:de:tuda-tuprints-229683
Sachgruppe der Dewey Dezimalklassifikatin (DDC): 500 Naturwissenschaften und Mathematik > 510 Mathematik
600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau
Fachbereich(e)/-gebiet(e): 16 Fachbereich Maschinenbau
16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD)
16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) > Analyse Thermischer Energiesysteme
Hinterlegungsdatum: 07 Dez 2022 13:28
Letzte Änderung: 08 Dez 2022 06:05
PPN:
Referenten: Stephan, Prof. Dr. Peter ; Gambaryan-Roisman, Apl. Prof. Tatiana ; Taggart, Prof. Dr. David G.
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