Simulating fast electron beam melting with a parallel thermal free surface lattice Boltzmann method

Journal article
(Original article)


Publication Details

Author(s): Ammer R, Ljungblad U, Markl M, Körner C, Rüde U
Journal: Computers & Mathematics With Applications
Publisher: Elsevier
Publication year: 2014
Volume: 67
Journal issue: 2
Pages range: 318-330
ISSN: 0898-1221
Language: English


Abstract


This paper introduces a three dimensional (3D) thermal lattice Boltzmann method for the simulation of electron beam melting processes. The multi-distribution approach incorporates a state-of-the-art volume of fluid free surface method to handle the complex interaction between gas, liquid, and solid phases. The paper provides a detailed explanation of the modeling of the electron beam gun properties, such as the absorption rate and the energy dissipation. Additionally, an algorithm for the construction of a realistic powder bed is discussed. Special emphasis is placed to a parallel, optimized implementation due to the high computational costs of 3D simulations. Finally, a thorough validation of the heat equation and the solid-liquid phase transition demonstrates the capability of the approach to considerably improve the electron beam melting process. © 2013 Elsevier Ltd. All rights reserved.



FAU Authors / FAU Editors

Körner, Carolin Prof. Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Markl, Matthias Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Rüde, Ulrich Prof. Dr.
Lehrstuhl für Informatik 10 (Systemsimulation)


Research Fields

Additive Manufacturing
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Modelling and Simulation
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)


How to cite

APA:
Ammer, R., Ljungblad, U., Markl, M., Körner, C., & Rüde, U. (2014). Simulating fast electron beam melting with a parallel thermal free surface lattice Boltzmann method. Computers & Mathematics With Applications, 67(2), 318-330. https://dx.doi.org/10.1016/j.camwa.2013.10.001

MLA:
Ammer, Regina, et al. "Simulating fast electron beam melting with a parallel thermal free surface lattice Boltzmann method." Computers & Mathematics With Applications 67.2 (2014): 318-330.

BibTeX: 

Last updated on 2018-09-08 at 17:08