In the thesis, we designed a simulation system for analyzing the interaction between a liquid and a solid. We were analyzing the deformation of a window seal due to its interaction with a water jet. Water jet simulations were done using a method of smoothed particle hydrodynamics using a program called PreonLab. Acquired pressure and shear forces acting on the seal were imported into a program called Ansys to compute seal deformation using a finite element method. PreonLab calculations were then repeated using the deformed gasket geometry. The cycle of exchanging geometry in PreonLab and forces acting on the seal in Ansys was repeated eight times. Due to the licensed installation of the programs used on different computers, we could not automate the process. When exchanging data, we encountered the problem of deleting simulation particles in simulations with hydrodynamics of smoothed particles, which caused large local pressure increases. The problem was solved by omitting the simulations at an unstable time step. We found that in the last data exchange cycle, the maximum gap between the glass and the seal was 1.7 mm and that the gap lets approximately 0.2 ml of water into the door frame, which was 8% of the volume of the generated water jet.
|
