Calculation and Test Verification of Ship Wave Added Resistance Based on SNNM Method
To verify the feasibility and effectiveness of the new method for predicting wave added resistance in all wave directions SHOPERA-NTUA-NTU-MARIC(SNNM)introduced by the International Towing Tank Conference(ITTC),a large passenger ship is selected as the target ship,and its heading wave navigation and economic speed conditions are selected.The new SNNM method for predicting wave added resistance in all wave directions is first briefly introduced,and based on this,the wave added resistance calculation of the target ship is carried out using the SNNM method.At the same time,wave added resistance tank model test is conducted,and the results are compared with those calculated using the SNNM method to verify that the calculation accuracy and reliability of the SNNM method.The comparison result shows that the change trend of the wave added resistance factor transfer function obtained by these two methods are consistent,and the largest difference on the statistical prediction value of the actual ship's wave added resistance is not more than 7％,which indicates that using the SNNM method to predict a ship's wave added resistance is acceptable.
wave added resistancemodel testnew method for predicting wave added resistanceempirical formula
万方数据
维普
