Numerical research on trim energy saving and its scale effects of a twin-skeg ship
Trim energy saving is an efficient and accessible means of saving energy in ships,for the application of trim energy saving,this paper is based on the numerical simulation method of RANS solution to simulate the flow field of twin skeg inland ships under different scale and trim angle conditions.The paper has discussed the influence of the trim angle on the resistance and its components;analyzed the reasons for the variation of the resistance with the trim angle and discussed the scale effect related to the trim energy saving.The results show that for the twin skeg ship discussed in this paper,when sailing at the design speed,the resistance is the lowest when the trim angle is about 1.5°,and there is an obvious scale effect for the ship's trim energy saving.