CFD技术在三体船阻力性能研究中的应用

三体船作为一种新型的高性能船型,由于其出色性能而受到越来越多的重视.同时,三体船型仍不是一种成熟的船型,对它的研究和应用还面临很多难题.文中在粘性理论的范畴内,将目前较流行的CFD技术应用于三体船的阻力性能研究中,在考虑自由水面效应的前提下,模拟了2种三体船构型在不同航速下的粘性流场,与三体船模型水池拖曳试验结果相比较,采用CFD技术模拟的结果是合理的.表明CFD技术可以在三体船型水动力性能研究中发挥重要作用.计算与试验结果在高Fr数段的较明显偏差表明对应用的方法或者算法本身有改进的必要.

Application of CFD technology to the research of resistance performance of trimaran

Although the trimaran,a new type of hull form with excellent performance,has received more and more attention,problems still exist in studying its hull form. Here,viscous computational fluid dynamics(CFD) technology was applied to research resistance performance of a trimaran.The flow field with free surface around two different configurations of a trimaran at several Froude numbers was simulated.Results compared reasonably with test data from the towing tank,showing that CFD technology can play an important role in the research of fluid dynamic performance of a trimaran.At the same time,an apparent discrepancy in calculated and test results at high Froude numbers shows that the application or the code itself should be improved.