CAJ | 학술논문

激光雷迪尔级是奥运会帆船比赛项目，为了解其船体的水动力性能，利用CFD数值模拟方法对激光雷迪尔级帆船船体不同航速条件下的水动力性能进行了计算。研究发现：航速对于船体的阻力大小有较大的影响；低航速条件下粘性阻力起主导作用，航速增到的一定程度，压差阻力成为主导因素。船体低航速行驶水面兴波很小，船体两侧流线呈对称分布；高航速下船体对水面影响很大，导致船体两侧受力不对称。船体阻力、压力分布等随航速变化的规律为帆船运动员进行帆船船体调整提供了科学依据。
격광뢰적이급시오운회범선비새항목，위료해기선체적수동력성능，이용CFD수치모의방법대격광뢰적이급범선선체불동항속조건하적수동력성능진행료계산。연구발현：항속대우선체적조력대소유교대적영향；저항속조건하점성조력기주도작용，항속증도적일정정도，압차조력성위주도인소。선체저항속행사수면흥파흔소，선체량측류선정대칭분포；고항속하선체대수면영향흔대，도치선체량측수력불대칭。선체조력、압력분포등수항속변화적규률위범선운동원진행범선선체조정제공료과학의거。
In order to obtain hull hydrodynamic perform-ance for Laser Radial class hull which is one of the Olym-pic Game sailing events,CFD method was used to calcu-late the hydrodynamic performance under different speeds. At low speeds,the speed has a huge effect on the drag resistance of the hull, the viscous drag resistance plays leading roles, the water is less affected by the hull and the flow line beside both sides of the hall is symmetri-cal. At high speeds, the pressure drag resistance is the dominant factor;the hull has a significant impact on the water and there is an asymmetric force on both sides of the hull. The discipline of the hull drag resistance, pres-sure distribution under different speeds provides a scien-tific basis for the sailors to trim the hull.