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Fluid-structure interaction by the mixed SPH-FE Method with application to aircraft ditching

Groenenboom, Paul and Siemann, Martin (2015) Fluid-structure interaction by the mixed SPH-FE Method with application to aircraft ditching. International Journal of Multiphysics, 9 (3), pp. 249-265. Multi-Science Publishing. doi: 10.1260/1750-9548.9.3.249. ISSN 1750-9548.

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Official URL: http://multi-science.atypon.com/doi/abs/10.1260/1750-9548.9.3.249?journalCode=ijm

Abstract

This paper deals with numerical simulation of fluid-structure interaction as it occurs during aircraft ditching – an emergency condition where an aircraft is forced to land on water. The work is motivated by the requirement for aircraft manufactures to analyze ditching as part of the aircraft certification process requested by airworthiness authorities. The strong interaction of highly non-linear fluid flow phenomena and structural responses requires a coupled solution of this transient problem. Therefore, an approach coupling Smoothed Particle Hydrodynamics and the Finite Element method within the commercial, explicit software Virtual Performance Solutions has been pursued. In this paper, several innovative features are presented, which allow for accurate and efficient solution. Finally, exemplary numerical results are successfully compared to experimental data from a unique test campaign of guided ditching tests at quasi-full scale impact conditions. It may be concluded that through the application of state-of-the-art numerical techniques it has become possible to simulate the coupled fluidstructure interaction as occurring during ditching. Therefore, aircraft manufacturers may significantly benefit from numerical analysis for design and certification purposes.

Item URL in elib:https://elib.dlr.de/99872/
Document Type:Article
Title:Fluid-structure interaction by the mixed SPH-FE Method with application to aircraft ditching
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Groenenboom, PaulESI Group NetherlandsUNSPECIFIED
Siemann, MartinDLR BT-SINUNSPECIFIED
Date:7 October 2015
Journal or Publication Title:International Journal of Multiphysics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:9
DOI :10.1260/1750-9548.9.3.249
Page Range:pp. 249-265
Publisher:Multi-Science Publishing
ISSN:1750-9548
Status:Published
Keywords:Fluid-Structure Interaction, Aircraft Ditching, SPH-FE Method, Validation
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 (old)
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Structural Integrity
Deposited By: Siemann, Dr. Martin
Deposited On:14 Jan 2016 09:08
Last Modified:19 Nov 2021 20:32

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