推力減少率について : 荷重度変更法による考察

抄録

For many years much efforts have been devoted to the theoretical prediction of the self-propulsion factors such as thrust deduction and wake and so forth. And the more sophisticated the propeller model is, the more accurately the prediction becomes for the thrust deduction. However only a little attempts have been done for comparing the theoretical prediction with the experiments based on changing the load condition amply. Such experiments are important because theories are described by the load condition which is one of the measure of propeller in operation. In this paper such comparison is made for four models, two full ships and two liners, in order to check the theoretical prediction qualitatively in which propeller is expressed by a distribution of semi-infinite tube of ring vortex. And, moreover, the wave making due to propeller also is taken into account.