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基于整体移动网格的排水型船自航直接数值预报方法

Numerical Method for Direct Self-propulsion Simulation of Displacement Type Ship Based on Integral Dynamic Mesh
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摘要 基于RANS方法,融合VOF自由面捕捉、滑移网格及整体移动网格等多项技术,构建排水型船自航因子直接数值预报方法,通过对比KCS船体阻力试验值与计算结果,验证了数值方法的可行性,在此基础上开展了KCS船模在KP458螺旋桨推进下自航的直接数值模拟,计算结果表明,该方法可为船舶自航因子的快速预报提供强有力支撑。 A mathematical model for self-propulsion of displacement type ship was developed based on Reynolds averaged Navier-Stokes and VOF equations. Sliding and integral dynamic mesh were applied to simulate propeller rotation and ship advan- cing respectively. The numerical method was verified with a good agreement with the simulation results and corresponding experimental data of KCS hydrodynamic performance. The direct numerical simulation of a self-propulsion of KCS equipped with KP458 propeller was carried out. The results showed that current method provides a feasible tool for rapidity forecast of surface ship.
作者 陈武 CHEN Wu(Naval Military Representative Office in Jiangnan Shipyard (Group) Co. Ltd. , Shanghai 209913, China)
出处 《船海工程》 北大核心 2017年第A02期41-44,共4页 Ship & Ocean Engineering
关键词 排水型船 自航 整体移动网格 计算流体力学 displacement type ship self-propulsion integral dynamic mesh CFD
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