本文基于计算流体力学(CFD)展开研究,首先深入分析船舶自身参数与外部环境因素对船舶静水航速的影响;随后构建基于CFD的船舶静水航速修正体系,涵盖基准CFD模型建立及修正参数计算模型构建,采用多元线性回归方法计算修正参数;最后通过独立CFD模拟数据对模型进行验证。结果表明,该修正体系具备一定的有效性与稳定性,修正参数计算模型对形状修正因子和流速修正系数的预测值与实际值偏差在合理范围,为船舶静水航速修正提供了可靠方法与理论依据。
Efficient and accurate speed prediction is very important to reduce ship operating costs and improve transportation efficiency. Based on computational fluid dynamics (CFD), this paper firstly analyzes the effects of ship's own parameters and external environmental factors on ship's still water speed. Then, a ship's still water speed correction system based on CFD is constructed, which covers the establishment of the benchmark CFD model and the calculation model of the corrected parameters, and the corrected parameters are calculated by using multiple linear regression method. Finally, the model is verified by independent CFD simulation data. The results show that the correction system has certain validity and stability, and the deviation between the predicted value and the actual value of the shape correction factor and the velocity correction coefficient is in a reasonable range, which provides a reliable method and theoretical basis for the correction of ship's still water speed.
2025,47(12): 43-47 收稿日期:2024-7-7
DOI:10.3404/j.issn.1672-7649.2025.12.009
分类号:U667.65
基金项目:2023年度河北省水利科研与推广计划项目(202384);2022年沧州市科技计划自筹经费项目(222109002);河北水利电力学院2023年度基本科研业务费产学研专项项目(SYKY2342)
作者简介:韩超(1987-),男,硕士,讲师,研究方向为流体力学及水文水资源
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