Numerical Analysis on Cavitation Inside the Nozzle with Bubble Nucleation Model

Abstract

The atomization phenomena of the fuel spray are known to be affected by flow conditions and cavitation inside the nozzle hole. Generally, it is known that bubble nuclear number increases with the increase in superheating degree on the liquid. So, the defining equation of cavitation inception is extremely important. In this report, bubble nucleation model was incorporated in commercial code of Star-CCM+ scheme which set bubble nuclear number of uniformity. And it was verified that the increase of bubble nuclear number affect the energy generated with cavitation bubble collapse.