Simulation of Water Impact Problems Using the Smoothed Particle Hydrodynamics Method
Pentecôte, N. and Kohlgrüber, D. and Kamoulakos, A. (2003) Simulation of Water Impact Problems Using the Smoothed Particle Hydrodynamics Method. In: Proceedings of the International Crashworthiness and Design Symposium 2003 (Tome 3) ICD03 International Crashworthiness and Design Symposium, 3. GRRT.
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This paper describes recent results of water impact simulations using the Smoothed Hydrodynamic Method (SPH) available in the explicit finite element code PAM-CRASH. In a first part, the principles, on which the SPH method is based, namely the kernel and the particle approximations, are discussed. Secondly, the strategy followed for the next simulations and the material model used for water are briefly described. The methodology and the material model are then validated with the simulations of rigid wedge specimens with various deadrises and a deformable aluminium WG 30 helicopter sub-floor structure impacting vertically on water. For all these simulations, calculated acceleration and pressure time histories are compared to measured data. Agreements and discrepancies between tests and simulations are discussed. Finally, some promising results of a ditching simulation with a full aircraft model are presented.
|Document Type:||Contribution to a Collection|
|Title:||Simulation of Water Impact Problems Using the Smoothed Particle Hydrodynamics Method|
|Journal or Publication Title:||Proceedings of the International Crashworthiness and Design Symposium 2003 (Tome 3)|
|In ISI Web of Science:||No|
|Series Name:||ICD03 International Crashworthiness and Design Symposium|
|Keywords:||water/structure interaction; Smoothed particle hydrodynamics simulation; vertical impact on water; ditching simulation|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L AR - Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||UNSPECIFIED|
|Institutes and Institutions:||Institute of Structures and Design|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||16 Sep 2005|
|Last Modified:||14 Jan 2010 13:12|
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