考古船阻力计算中湍流模型与格式研究

为了研究不同湍流模型在船舶水动力性能预报中的适用性,在求解RANS方程的数值计算方法过程中，通过采用S-A、k-Omega、SST、EASM、DES等湍流模型，对考古船的阻力进行了预报，并将计算结果与试验结果进行了对比分析。由5种湍流模型的预报结果与试验值的对比得出：S-A、k-Omega模型对阻力性能的预报存在明显的缺陷；SST模型会有改进，计算误差能控制在工程应用的范围内，能够很好地应用于船模的阻力计算。

Study on turbulence model and numerical formats in the resistance calculations of archaeological vessel

In order to study the suitability of different turbulent models for ship hydrodynamic performance forecasting, by using the SA, K-Omega, SST, EASM, DES turbulent models to calculate archaeological ship resistance, in the process of numerical methods for solving the RANS equation. The calculated and experimental results were compared. By comparing the predicted results of five kinds of turbulence models with the experimental value, we find that the SA, K-Omega models have obvious defects to forecast resistance properties, and the SST model will improve the calculation error which can be controlled in the range of engineering applications inside, it can well be applied to calculate the resistance of the ship model.