Passive control of cavitating flow around an axisymmetric projectile by using a trip bar

Passive control of cavitating flow around an axisymmetric projectile by using a trip bar

Blog Article

Quasi-periodical evolutions such as shedding and collapsing of unsteady cloud cavitating flow, induce strong pressure moen voss toilet paper holder fluctuations, what may deteriorate maneuvering stability and corrode surfaces of underwater vehicles.This paper analyzed effects on cavitation stability of a trip bar arranged on high-speed underwater projectile.Small scale water tank experiment and large eddy simulation using the open source software OpenFOAM were used, and the results agree well with each other.Results also indicate that trip bar can obstruct downstream re-entrant jet and pressure wave propagation caused by collapse, resulting in a relatively stable sheet cavity between trip bar and utopia hoodie brown shoulder of projectiles.

Keywords: Unsteady cavitating flow, Trip bar, Re-entrant jet, Passive flow control.