CAJ | 학술논문

根据螺旋桨局部坐标转换成全局坐标的型值，建立螺旋桨的三维几何模型。基于商业软件，分别研究分区混合流体网格和结构网格的划分。使用Fluent软件分析螺旋桨的敞水性能，结合MRF转动模型和SST湍流模型研究螺旋桨在不同进速系数下的推力、转矩和敞水效率。与实验测量值比较，证实了该方法的工程可用性。基于Workbench平台，将CFD软件计算和有限元求解耦合起来，研究螺旋桨敞水时的单向流固耦合作用，对桨叶的结构强度进行校核计算，并分析螺旋桨应力，变形与进速系数的关系。
근거라선장국부좌표전환성전국좌표적형치，건립라선장적삼유궤하모형。기우상업연건，분별연구분구혼합류체망격화결구망격적화분。사용Fluent연건분석라선장적창수성능，결합MRF전동모형화SST단류모형연구라선장재불동진속계수하적추력、전구화창수효솔。여실험측량치비교，증실료해방법적공정가용성。기우Workbench평태，장CFD연건계산화유한원구해우합기래，연구라선장창수시적단향류고우합작용，대장협적결구강도진행교핵계산，병분석라선장응력，변형여진속계수적관계。
According to the curved-surface offsets after transferred in global coordinate, the 3D geometry model of propeller was built. Based on commercial software, the mesh method of sub-domain hybrid fluid meshes and structure meshes was studied. This paper analyzed propeller open-water performance by Fluent software,got propeller thrust ,torque and open-water efficiency by using MRF model and SST model, Then compared calculated results to trial value,proving project application feasibility. Based on platform of workbench,a coupled computational fluid dynamics(CFD)and finite elements method was presented in this paper. In the coupling process,the strength of propeller was checked;the unidirectional fluid-solid interaction and the relationship between stress,deformation and advanced coefficient was researched.