基于人工智能的预测方法通过FFB在Ostwald de-Waele流体的驱动腔内传播,使用CFD-ANN和Levenberg-Marquardt
Ahmed Refaie Ali1, Rashid Mahmood2, Atif Asghar2
1Department of Mathematics and Computer Science, Faculty of Science, Menoufia University, Shebin El Kom, 32511, Menofia, Egypt. ahmed.refaie@science.menofia.edu.eg.
Scientific reports
|May 14, 2024
概括
这项研究将计算流体动力学 (CFD) 与人工神经网络 (ANN) 结合起来,以准确预测流体对障碍物的力. 混合方法显著减少了计算时间,同时保持了对拖动和提升系数的高预测准确性.
科学领域:
- 计算科学是一种计算科学.
- 流体动力学 流体动力学
- 人工智能的人工智能是人工智能.
背景情况:
- 计算流体动力学 (CFD) 越来越多地与人工智能 (AI) 和机器学习 (ML) 集成.
- 在CFD等计算科学领域,AI/ML方法可以提高效率和创新.
- 在流体动力学模拟中,预测流体对障碍物的力量至关重要.
研究的目的:
- 将CFD模拟与人工神经网络 (ANN) 结合起来,用于预测流体对障碍物的力.
- 评估混合CFD-ANN方法的准确性和效率.
- 分析像雷诺兹数这样的参数对流体力的影响.
主要方法:
- 使用有限元法 (FEM) 模拟的流体流动动量方程.
- 使用CFD计算水力动力学力 (压力下降,拉动,提升) 在气上.
- 训练了一个Feed-Forward Back (FFB) 神经网络,使用CFD数据进行力预测.
主要成果:
- 实现了对阻力系数 (CD) 和升力系数 (CL) 的高预测精度,平均平方误差 (MSE) 在±2%和R2 ≈99%之间.
- 证明了功率定律指数 (n) 和雷诺兹数 (Re) 对流量参数的影响.
- 与传统的CFD方法相比,观察到计算时间的显著减少.
结论:
- 混合CFD-ANN模型准确地预测了流体对障碍物的力量.
- 这种方法可以节省大量的计算时间.
- 将ANN与CFD集成为流体动力学研究提供了一个有前途的方向.
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