Skip to Main Content
Skip Nav Destination
ASME Press Select Proceedings
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
Joseph Katz
Joseph Katz
Search for other works by this author on:
No. of Pages:
ASME Press
Publication date:

In this paper, a computational study was carried out to investigate the influence of the use of grooved needles on the cavitation flow with needle movement inside a injector nozzle. With this aim, high pressure nozzles with needle movement have been simulated and analysed for 2 different nozzles: one with grooved needle valve and one ordinary nozzle. The internal cavitating flow during the full opening period has been modeled with a multi-hole nozzle model that considers the cavitating flow in thermodynamic and homogeneous equilibrium state. The comparison between two type nozzles has been made in terms of velocity, vorticity, vapor volume fraction and mass flow rate over the needle opening period. The results of the investigation have shown that the groove leads to an increment of the cavitation bubbles of the injector orifice entrance.

Numerical Method
Computational Grids and Setup
Results and Discussion
This content is only available via PDF.
Close Modal

or Create an Account

Close Modal
Close Modal