Results 201 to 210 of about 22,289 (229)
Some of the next articles are maybe not open access.
Adaptive time step in simulation of progressive flooding
Ocean Engineering, 2014Abstract Time accurate simulation of progressive flooding inside a ship often requires a short time step. However, after the initial phases, as the flooding progresses to undamaged compartments, the flow rates decrease and much longer time step could be used. Yet the collapsing of non-watertight structures may cause additional phases of fast flooding,
Pekka Ruponen
openaire +3 more sources
Pressure-Correction Method for Simulation of Progressive Flooding and Internal Air flows
Ship Technology Research, 2006A pressure-correction method with an implicit scheme is used to solve the time accurate distributions of floodwater and air pressure inside a damaged ship. Only the progress of the floodwater and the airflows inside the ship are considered; changes in the floating position of the ship are excluded. The method is applied to three test cases. The results
Pekka Ruponen
openaire +3 more sources
A new calculation technique for onboard progressive flooding simulation
Ship Technology Research, 2018During a flooding emergency, the master has to take hard decisions with serious impact on passengers and crew safety. A fast and reliable time domain simulation of the progressive flooding process can significantly aid the master in choosing the right counteractions immediately after the damage occurrence.
Braidotti, Luca, Mauro, Francesco
openaire +2 more sources
Free-Outflow Modelling in the Linearised Progressive Flooding Simulation Methodology
2022In linearised progressive flooding simulations, special attention shall be given to the damage and internal openings modelling. The steady Bernoulli equation, which is usually employed in quasistatic progressive flooding simulations, applies to the deeply-submerged case only.
Braidotti, Luca +2 more
openaire +2 more sources
Volume 5: Ocean Engineering; CFD and VIV, 2012
Rising needs for heavy transport operations are intensified by the expanding offshore industry worldwide. Whenever very large and heavy objects have to be transported, only semi-submersible heavy transport vessels are capable of carrying this special cargo.
Hendrik Dankowski, Hannes Hatecke
openaire +1 more source
Rising needs for heavy transport operations are intensified by the expanding offshore industry worldwide. Whenever very large and heavy objects have to be transported, only semi-submersible heavy transport vessels are capable of carrying this special cargo.
Hendrik Dankowski, Hannes Hatecke
openaire +1 more source
On the Effect of Uncertainties on Onboard Progressive Flooding Simulation
2019Nowadays, the quasi-static techniques devoted to progressive flooding simulation are present in the literature. Most of them can be applied onboard to support crew decisions after a flooding casualty. However, in real scenarios, the input parameters, adopted to carry out time domain simulations, are often not accurately assessed or even unknown.
Braidotti Luca +2 more
openaire +2 more sources
Bucharest can be considered Europe's most endangered capital to earthquakes. Intermediate-depth seismic events occurring in the Vrancea Area, with magnitudes greater than 7 MW, can significantly affect the city. In the 20th century, Bucharest experienced two major damaging earthquakes: in 1940 and 1977. But the occasioned lessons were not fully learned.
Dragos Toma-Danila +3 more
openaire +1 more source
Dragos Toma-Danila +3 more
openaire +1 more source
Advances in the linearised progressive flooding simulation method
To achieve a fast and accurate progressive flooding simulation for decision support purposes, the linearised method was introduced and perfected in recent years being consolidated into a reliable tool. The problem is modelled using a differential algebraic equation system capable of coping with full compartments.openaire