Investigation of Numerical Analysis for Slamming Loads
Examensarbete för masterexamen
Please use this identifier to cite or link to this item:
There are no files associated with this item.
|Type: ||Examensarbete för masterexamen|
|Title: ||Investigation of Numerical Analysis for Slamming Loads|
|Authors: ||Dahlgren, Andreas|
|Abstract: ||Numerical analysis to evaluate slamming is today accurate but rather time consuming. The industry lacks a practical method to predict slamming on appendages in a simple manner since the simulation cost is too high. This paper examines a numerical method simulated in OpenFOAM, with use of the interDyMFoam utility and the volume of fluid method (VOF). The method is verified through recreation of two drop test experiments along with a fin equipped hull. The hull is compared to the estimated design load proposed by ABS whilst the experiments are compared to the experimental data along with similar research executed with alternative methods. It was found that the investigated method predicts the slamming load of the experiments with an accuracy of ±20%. A result that can be reduced to ±5 − 10% with use of a finer mesh. The slamming duration is not captured with decent accuracy and future research to improve the surface definition is needed to improve the overall accuracy.|
|Keywords: ||Farkostteknik;Transport;Vehicle Engineering;Transport|
|Issue Date: ||2016|
|Publisher: ||Chalmers tekniska högskola / Institutionen för sjöfart och marin teknik|
Chalmers University of Technology / Department of Shipping and Marine Technology
|Series/Report no.: ||Report. X - Department of Shipping and Marine Technology, Chalmers University of Technology, Göteborg, Sweden|
|Collection:||Examensarbeten för masterexamen // Master Theses|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.