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Novel particle distributions for SPH bird-strike simulations

Siemann, Martin and Ritt, Stefan Andreas (2018) Novel particle distributions for SPH bird-strike simulations. Computer Methods in Applied Mechanics and Engineering, 343, pp. 746-766. Elsevier. DOI: 10.1016/j.cma.2018.08.044 ISSN 0045-7825 (In Press)

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Official URL: https://www.sciencedirect.com/science/article/pii/S0045782518304420

Abstract

This paper is concerned with bird-strike numerical simulations using the Smoothed Particle Hydrodynamics method to represent the bird model. A comparison between bird models with classical mesh-based particle distributions and bird models with initial particle distributions generated using a technique based on the Weighted Voronoi Tessellation algorithm is presented. The adopted iteration technique to fill the bird model with particles is described. Particle distributions generated using this new technique are assessed in comparison with reference bird models commonly used in the literature. Results of generic bird-strike simulations on a flat target structure indicate the superiority of the proposed bird models over the bird models with classical mesh-based particle distributions in terms of flow behavior, conservation of total energy, normal forces, pressures, and computational efficiency.

Item URL in elib:https://elib.dlr.de/121954/
Document Type:Article
Title:Novel particle distributions for SPH bird-strike simulations
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Siemann, MartinMartin.Siemann (at) dlr.dehttps://orcid.org/0000-0002-7213-0715
Ritt, Stefan Andreasstefan-andreas.ritt (at) dlr.dehttps://orcid.org/0000-0002-5330-509X
Date:1 October 2018
Journal or Publication Title:Computer Methods in Applied Mechanics and Engineering
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:343
DOI :10.1016/j.cma.2018.08.044
Page Range:pp. 746-766
Publisher:Elsevier
ISSN:0045-7825
Status:In Press
Keywords:Bird-strike, Numerical Simulation, Smoothed Particle Hydrodynamics, Weighted Voronoi Tessellation, Particle distribution
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Structural Integrity
Deposited By: Kohlgrüber, Dieter
Deposited On:15 Nov 2018 10:25
Last Modified:06 Sep 2019 15:24

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