基于 STAR-CCM＋对5415船模的阻力预报

摘要

以5415船模为研究对象，介绍了 STAR －CCM＋对5415船模的数值仿真过程，对该船模的阻力、升沉及横倾角进行了数值计算，并与现有的试验值进行对比，验证了 STAR －CCM＋对该船型在静水运动中数值模拟的有效性；研究表明：总阻力系数、剩余阻力系数都是随 Fr 增大而增大，当 Fr ＜0．35时，增长缓慢，当 Fr ＞0．35时，增长迅速；同时在 Fr ＝0．35时，横倾角发生了显著的变化，Fr ＝0．35是该船模静水阻力性能发生变化的分界点。%Based on the 5415 ship model as the research object,this paper introduced the numerical simulation process according to 5415 ship model by STAR-CCM+,which simulated the resistance,heave and heeling about the ship model,and compared with existing given test value,we verified the STAR -CCM +on the boat in still water movement the validity of the numerical simulation.Research shows that the total resistance coefficient and residual resistance coefficient increase with the Fr increase,and the growth is slow when Fr <0.35,and the growth is rapid when Fr >0.35;the transverse inclination has changed significantly when Fr =0.35.So Fr =0.35 is the dividing point of resistance performance of the ship model change.