In the past decade filaments have been recognised as a major structural element of interstellar medium, densest these hosting formation most stars. some star-forming molecular clouds converging networks filaments, also known hub filament systems, can be found. These hubs are believed to preferentially associated massive star formation. As today, there no metrics that allow systematic quantifica...

Cavitating Venturis are simple apparatus used as a flow meter over broad range of mass-flow rates. The main objective this work is to introduce obstacles in small-sized cavitating order increase their capacity by raising the critical pressure, i.e. widens phase mode. Four configurations have been tested depending on location these obstacles. This study focused investigating numerical performanc...