Reference number : GC-2017-Q4-01279, amendment number : , agreement type : G, recipient legal name : Mohammadian, Abdolmajid (University of Ottawa)|Mohammadian, Abdolmajid (Université d’Ottawa), recipient country : CA, recipient province : nan, recipient city : Ontario, recipient postal code : nan, program name english : Engage Grants for universities, program name french : Subventions d'engagement partenarial pour les universités, program purpose english : Liquid Storage Tanks (LST's) are used for storage of drinking water, various industrial liquids such as_x000D_
Liquified Natural Gas (LNG), oil, petroleum, as well as in the treatment of pulp and paper product wastes as_x000D_
well as other industrial wastes. The stored materials could also be toxic or flammable, so keeping the tanks_x000D_
functional and preventing them from damages during and after an earthquake event is important in the design_x000D_
process. Currently, simplified analytical methods are adopted by design codes in North America for the design_x000D_
of these tanks. However such methods are only acceptable in tanks with certain aspect ratios where sloshing_x000D_
waves are linear. For tanks in which non-linearity occurs, the method loses its accuracy. In a design case,_x000D_
reliable prediction of the forces on the roof and required freeboard is important to prevent failure of the tanks._x000D_
Some previous studies show that the hydrodynamic pressure due to the sloshing of the liquid at the sharp tank_x000D_
corners can be up to three times higher compared to other locations. This pressure can cause significant damage_x000D_
to the tanks. In the current project, partially filled tanks with and without a roof are excited on a seismic_x000D_
shaking table. For tanks with a roof, the data is obtained through pressure sensors that are placed at various_x000D_
locations on the tank and collecting the pressure data to find the associated pressures at each senor location. For_x000D_
roofless tanks, the sloshing height is the parameter of interest. The simulations are also recorded in the form of_x000D_
video clips for further investigation of the free surface. For the simulations, the OpenFOAM which is a_x000D_
Computational Fluid Dynamics (CFD) program is used to generate excitations. The results of numerical and_x000D_
experimental study are used to develop a simplified procedure to calculate the sloshing heights and roof_x000D_
pressures near the tank corners., program purpose french : Liquid Storage Tanks (LST's) are used for storage of drinking water, various industrial liquids such as_x000D_
Liquified Natural Gas (LNG), oil, petroleum, as well as in the treatment of pulp and paper product wastes as_x000D_
well as other industrial wastes. The stored materials could also be toxic or flammable, so keeping the tanks_x000D_
functional and preventing them from damages during and after an earthquake event is important in the design_x000D_
process. Currently, simplified analytical methods are adopted by design codes in North America for the design_x000D_
of these tanks. However such methods are only acceptable in tanks with certain aspect ratios where sloshing_x000D_
waves are linear. For tanks in which non-linearity occurs, the method loses its accuracy. In a design case,_x000D_
reliable prediction of the forces on the roof and required freeboard is important to prevent failure of the tanks._x000D_
Some previous studies show that the hydrodynamic pressure due to the sloshing of the liquid at the sharp tank_x000D_
corners can be up to three times higher compared to other locations. This pressure can cause significant damage_x000D_
to the tanks. In the current project, partially filled tanks with and without a roof are excited on a seismic_x000D_
shaking table. For tanks with a roof, the data is obtained through pressure sensors that are placed at various_x000D_
locations on the tank and collecting the pressure data to find the associated pressures at each senor location. For_x000D_
roofless tanks, the sloshing height is the parameter of interest. The simulations are also recorded in the form of_x000D_
video clips for further investigation of the free surface. For the simulations, the OpenFOAM which is a_x000D_
Computational Fluid Dynamics (CFD) program is used to generate excitations. The results of numerical and_x000D_
experimental study are used to develop a simplified procedure to calculate the sloshing heights and roof_x000D_
pressures near the tank corners., agreement title english : Development of a simplified method for hydrodynamic pressures in wall corners and roof in liquid storage tanks, agreement title french : Development of a simplified method for hydrodynamic pressures in wall corners and roof in liquid storage tanks, agreement number : EGP, agreement value : 25000.0, agreement start date : 2018-02-07, agreement end date : nan, description english : nan, description french : nan, expected results english : nan, expected results french : nan, additional information english : Grant or Award spanning more than one fiscal year (2017-2018 to 2018-2019)., additional information french : Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2018-2019)., owner organization : nserc-crsng, owner organization title : Natural Sciences and Engineering Research Council of Canada | Conseil de recherches en sciences naturelles et en génie du Canada