NDLI: Numerical and Experimental Study on Aircushion Supported Structures

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Kessel, J. L. F. Van
Copyright Year	2008
Abstract	The use of aircushions for very large floating structures has been investigated in recent years at Delft University of Technology. Model tests were performed to validate the results of numerical calculations based on a linear three-dimensional potential method. A linear adiabatic law was used in the numerical approach to describe the air pressures inside the cushions. It is assumed that air cannot escape from the cavity underneath the structure. The water surface within the aircushions and the mean wetted surface are modelled by panel distributions representing oscillating sources. Experimental results and numerical calculations of two configurations of aircushion supported structures at zero speed are presented in this paper. The results show that model tests of different aircushion supported structures can be well predicted by means of 3D diffraction calculations.
Sponsorship	Ocean, Offshore and Arctic Engineering Division
Starting Page	539
Ending Page	548
Page Count	10
File Format	PDF
ISBN	9780791848234
DOI	10.1115/OMAE2008-57884
e-ISBN	0791838218
Volume Number	Volume 6: Nick Newman Symposium on Marine Hydrodynamics; Yoshida and Maeda Special Symposium on Ocean Space Utilization; Special Symposium on Offshore Renewable Energy
Conference Proceedings	ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering
Language	English
Publisher Date	2008-06-15
Publisher Place	Estoril, Portugal
Access Restriction	Subscribed
Subject Keyword	Motion behaviour Air pressure Aircushion supported structure Model tests Wave forces Wave elevation Vlfs Water Cavities Diffraction Floating structures Pressure Waves
Content Type	Text
Resource Type	Article

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