PRELIMINARY RESULTS ON THE PREDICTION OF SHIP PROPELLER CAVITATION NOISE POWER SPECTRA FROM THE MEASUREMENT OF ITS MODEL IN A CAVITATION TUNNEL

Propeller cavitation noise spectra were measured in the cavitation tunnel of Shanghai Jiao-tong University as well as in actual ship. Formulae of prediction for prototype propeller cavitation noise spectra in a ship are derived on the basis of energy relations. The formula with correction of air content of bubble gives more accurate results.