采用计算流体动力学(CFD)技术实现在船舶设计阶段对船舶水动力性能的精确预报，是船舶水动力学学科中一个具有重大理论和实用意义的、富有挑战性的课题。
Numerical prediction of ship hydrodynamic performance at design stage using computational fluid dynamics (CFD) technique is a most important and challenging subject in the field of ship hydrodynamics.
根据拉格朗日动力学方程及克雷洛夫-勃拉哥维辛斯的理论，首次建立了“船舶-减摇鳍-被动式减摇水舱”综合减摇系统的数学模型。
According to Lagrange dynamical equation and Kriloff theory, the mathematical model of integrated anti-roll system "ship -fin stabilizer-passive anti-roll tank" is built up.
根据水动力学弥散理论建立农药在包气带中运移与转化过程的数学模型，评价农药使用对地下水环境的影响。
A mathematic equation was established to model the leaching and transformation of pesticides in root zone and assess impact of pesticide on groundwater.
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