AIR-HOLE SIMULATION MODEL PROPELLER FOR GOOD PREDICTION OF FULL-SCALE CAVITATION PERFORMANCE

摘要

The present invention relates to an air spraying hole simulation model propeller for enhancing prediction of a full-scale cavitation performance which can provide the same condition as an actual installation by promoting generation of a cavitation by simulating an air spraying hole formed on a full-scale propeller. The air spraying hole simulation model propeller for enhancing prediction of a full-scale cavitation performance comprises: a propeller main body which is manufactured in the shape the same as the full-scale propeller and is rotated after the propeller main body is attached to a rotation axis of a body to be tested; and a roughness providing member which is formed along an outline of a front blade of each wing forming the propeller main body, simulates the air spraying hole formed on the full scale propeller, increases roughness of the surface of the front blade, and, at the same time, generates movement of fluid resulted from pressure difference formed near the front blade of the wing, and, consequently, promotes generation of the cavitation.