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Example of full-scale sloshing test


Dedicated pressure sensor Measuring pressures exerted by a fluid on a structure during hydrodynamic impact is not at all straightforward. Therefore, generally, the recorded pressures differ from actual pres- sures. Aware of this, MARIN qualified the whole chain of pressure measurements in hydrodynamic conditions that are repre- sentative of sloshing events and designed a dedicated pressure sensor. This process gave MARIN confidence in the validity of the pressure measurements obtained from the full-scale tests.


As a good correlation was found between local strains and the pressures of the con- tainment system in the full-scale tests, the Sloshel consortium concluded that pressure measurements are reliable when properly prepared and interpreted.


Sloshel is a very important project. Impact development, structural response and asso- ciated pressures have never been recorded simultaneously at full-scale before. This was only possible by employing the iCAM, in combination with robust pressure sen- sors. Therefore, the Sloshel consortium can now revisit and, if necessary, modify meth- ods which are based on small- scale testing for the assessment of containment systems subjected to sloshing in membrane LNG tanks. This process is ongoing and includes the determination of scaling laws and hydro-elastic effects.


A note of thanks: MARIN would like to acknowledge the support provided by the Sloshel consortium that made this project possible.


Spatial and temporal evolution of sloshing impact captured by iCAM


Qualification of pressure gauges report 17


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