Optimization of Underwater Cavity's Shape

Abstract

The steady bubble shape as one of the basic research, plays a decisive role in the cavitation’s study, To study it clearly will be not only basis for the study of non-steady cavitation, but also provide the necessary basis for the design of the control for cavitation bubble. In this paper, cavity shape produced by submerged body is studied, and related to the use of foreign experimental results, super-cavitation resistance, drag reduction is discussed.

Numerical Simulation of Internal Flow in Stamping and Welding Multistage Centrifugal Pump

“…Computing Method. Defined the impeller in rotating coordinates and others in the inertial coordinate system, every sections have been coupled with the MRF [4] in FLUENT. Under discrete format, pressure item adopt standard form, with the computer's capacity and the stability of the first-order windward format, use the first-order windward format for the convection item, turbulent kinetic energy item and turbulent kinetic energy dissipation rate.…”