Development of High Performance Finite Element Software for Impulse Waves Induced by Landslides

Landslides, debris flows and glaciers with a high movement velocity can cause impulse waves when they impact closed water bodies in reservoirs, lakes, rivers and bays. The impulse waves can result in large-scale disasters. In order to effectively prevent from impulse waves, it is necessary to research the wave characteristics and establish the prediction method of the waves scale. In order to shorten the calculation time of large-scale impulse wave analysis, it is necessary to develop a multi-core and multi-threaded parallel method for solving linear equations. In this study, a high performance finite element analysis program for impulse waves was developed by using PARDISO, a sparse matrix solver implemented on a shared memory machine provided by Intel MKL. By comparing the theoretical and numerical results of vertical dam break and comparing the results of laboratory experiments and numerical calculations, it is shown that the developed finite element software for impulse waves can obtain reliable calculation results.