Hydrodynamic analysis of earthquake-excited dams

The immediate effects of an earthquake on a dam-reservoir system may include a substantial, temporary alteration in water pressure patterns due to hydrodynamic forces and the generation of surface waves that could potentially impact the boundaries of the reservoir, including the dam face. We can analyse hydrodynamic response of a dam-reservoir system including the following effects:

• Compressibility effects play a pivotal role in the hydrodynamic response of a dam-reservoir system. Our numerical model can accurately calculate hydroynamic pressures including compressibility effects.
• Free-surface waves generated by the earthquake are simulated. Wave run-up on the dam face can be predicted.
• We perform three-dimensional simulations of a dam-reservoir system for a complete analysis.
• We simulate hydrodynamic response of the dam-reservoir system using real earthquake records.

Simulation of turbulent and free-surface flows around hydraulic structures

Flow regime is significantly influenced by the existence of a hydraulic structure in irrigation canal sor rivers due to the local changes in turbulent and free-surface flow. We can create the numerical model of the project to simulate flow around the structure using Reynolds-Averaged, Large-Eddy Simulation or Detached Eddy Simulation turbulence models.

Our high-resolution numerical simulations can provide:

• Hydrodynamic forces acting on the structure and the channel.
• Water depths at the upstream and downstream of the structure.
• Design alternatives can be developed to mitigate adverse hydrodynamic effects.
• Vortex structures forming around the structure can be captured.

Liquid sloshing in accelerated tanks

Liquid sloshing in open containers with the external excitation is an important phenomenon in engineering applications, such as liquid carriers in ground, marine, or air transport vehicles, as well as in earthquake excited water supply towers. Sloshing can result in excessive hydrodynamic loads on the tank walls, and can lead to the destabilization of the structure dynamics when the excitation frequency is close to the lowest natural frequency of the partially filled container. Thus, it is critical to correctly predict and reduce the nonlinear sloshing effects in the liquid containing structures, as encountered in many engineering applications.

Our high-resolution numerical simulations can provide:

• Sloshing wave height can be predicted under various acceleration records.
• Hydrodynamic forces acting on the container can be silumated.
• A damper can be designed to mitigate sloshing effects.