双体船/三体船兴波阻力数值预报方法研究

Research on numerical prediction method for wavemaking resistance of catamaran/trimaran

采用改进的Dawson方法,自行开发了可用于双体船、三体船兴波阻力的数值预报程序,并且考虑了高速三体船方尾的处理。利用本文的数值预报方法分别计算了一条小水线面双体船和一条三体船,验证了本文的数值预报方法在一定范围内能较合理地预报双体船、三体船的兴波阻力。此外,还讨论了该方法在三体船片体位置优化中的应用,通过和试验值对比验证了该方法可用于三体船片体布局优化。

maran and Based on improved Dawson method, a code for predicting the wavemaking resistance of catatrimaran is developed,which specially taking the disposal of transom stern into consideration. The wave making resistance of one SWATH and one trimaran is computed using this method, the numerical results coincide with the experimental results quite well, it shows that this method can properly predict the wave making resistance of catamaran and trimaran, Furthermore, its application to optimization of trimaran side hull configuration is exploited, comparison to experimental data indicates the method of this paper is suitable for hull configuration optimization.