Lines Optimisation 线型优化

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A Rasselas 3 rapid

Lines Optimisation 线型优化

In order to achieve the highest performance for the vessel, successive potential flow calculations can be carried out by means of our non-linear CFD code RAPID. Particular attention is paid to the reduction of the bow, shoulder and stern waves and optimisation of the pressure distribution over the hull. By using our RAPID-Explorer package, a systematic variation of a certain section can be carried out by a deformer program and the optimal lines can be finally found within given limits. For a detailed investigation of the hull lines with respect to the viscous flow, our state-of-the-art RANS solver PARNASSOS is widely used to predict the flow over the complete hull surface. It predicts the velocity field, streamline patterns and pressure distribution, and is used for instance to eliminate separation phenomena and to predict the wake field at the propeller disc.

为实现船舶最高性能,可使用我们的非线性势流CFD软件RAPID,该软件尤其注重首、肩和尾浪的减小以及船体压力分布的优化。通过我们的RAPID-Explorer包,能够得到某部分的变形情况并在给定限制条件下得到最佳线型。对于考虑粘性流的船体型线细节研究,我们拥有最先进的RANS求解器PARNASSOS,其广泛应用于预报完整船体表面流动,包括速度场、流线型和压力分布等。如消除分离现象和预报螺旋桨面伴流场。

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