nowadays, using public transportation vehicles like metro in large cities are of significance, and exposure to whole-body vibration for the metro passengers is one of the physical contaminations. this paper is conducted with the aim of evaluating the passengers’ convenience and health both in sitting and standing conditions. the present study was done on the passengers of lines 1, 2, and 4 of t...

During high-speed water-exit of the supercavitating projectile, cavity interacts with free surface and collapses, instantaneous high collapse pressure impacting on projectile. In order to study characteristics during numerical based Reynolds-averaged equation volume fluid multiphase flow model is conducted in this paper. The results show that near will gradually become larger movement projectil...