Abstract This study develops a new numerical simulation model for rubble mound failure prediction caused by piping destruction under seepage flows. The has been pointed out as significant cause of breakwater during tsunamis. Once boiling and heaving occur on the surface, suddenly propagates in opposite direction flow. For prediction, coupled fluid-soil-structure simulator is developed combining...

This paper discusses the application of fiber-optic technologies in measuring parameters stress-strain state a seamless track rail. Measuring modules are attached directly to side surface rail and contain sensors with special structure for changing refractive index along length base part. The values deformations determined during full-scale measurements when analyzing changes light pulses passi...

This work focuses on vortex-within-a-vortex (VV) structures behind three different shapes of forked caudal fin with a heaving-pitching motion. The results show that the synchronization trailing-edge vortex separation and shedding leading-edge contributes to generation VV structure. fins chord lengths can be observed almost simultaneously. Strouhal number not only determines vortices in wake but...