CFD在潜艇操纵性水动力工程预报中的应用研究

Research of CFD application in engineering estimation of submarine maneuverability hydrodynamic forces

潜艇操纵性的设计预报基础是潜艇操纵性水动力的预报。基于潜艇线型几何参数的工程实用预报方法,在潜艇操纵性方案选型和水动力布局优化设计中显得尤为重要。本文探讨CFD在潜艇操纵性水动力预报方面的应用能力和预报精度,并应用七参数线型模型、采用均匀设计试验方法,设计了一个系列28条潜艇主体类水滴型模型,通过数值模型试验和回归分析,提出了潜艇主体操纵性水动力的估算公式,具有良好的应用前景。

The maneuverability design of a submarine is based on the prediction of hydrodynamic forces. The engineering estimation based on the parameters of hull geometry is very important for maneuverability design. The present paper investigated the accuracy of CFD (Computational Fluid Dynamic) in maneuverability hydrodynamic forces prediction, designed a series of bodies of seven-parameter representation with uniform experimental design approach and presented a set of estimation formulae through stepwise regression method with the computed hydrodynamic forces of the series bodies. Such formulae related to maneuverability are quite compatible with that of resistance and will be very useful in the optimization of the overall performance of submarine design.