METHOD FOR RESTRICTING NOISE AND IMPACT DUE TO CAVITATION

摘要

PURPOSE: A method for restricting noise and impact due to cavitation is provided to minimize occurrence of noise and impact by restricting repetition of extension and of reduction of cavitation generated by pressure change inside water or metal liquid. CONSTITUTION: A method for restricting noise and impact due to cavitation includes the steps of mounting an electromagnet(130) corresponding to a position where a cavitation(110) is changed inside water or metal liquid and restricting deformation of the cavitation to minimize noise and impact energy. If a magnetic field is applied to the cavitation generating position continuously, a magnetic line permeates the cavitation, and thereby the magnetic field applies pressure to the cavitation.