基于卷积神经网络的振动叶片叶栅流动模拟

IF 2.6 2区 数学 Q1 MATHEMATICS, APPLIED Journal of Computational and Applied Mathematics Pub Date : 2025-07-01 Epub Date: 2025-01-03 DOI:10.1016/j.cam.2024.116478
Ondřej Bublík , Václav Heidler , Jan Vimmr
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引用次数: 0

摘要

本文旨在设计一个计算模型来模拟摆动叶片叶栅中的非定常流场。新模型的核心是一个卷积神经网络,它是在一个由三个叶片组成的简化级联上训练的。其主要优势在于显著降低了计算成本,因为新模型的评估速度比传统的CFD方法快几个数量级,尽管训练模型仍然需要大量的计算。算例验证表明,卷积神经网络可以准确地预测非定常流场。在接下来的步骤中,提出了一种组合算法,将几种简化情况结合起来,使具有任意数量叶片的叶栅的解成为可能。
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Convolution neural network for fluid flow simulations in cascade with oscillating blades
This paper aims to design a computational model for simulating the unsteady flow field in a cascade of oscillating blades. The core of the new model is a convolutional neural network, which is trained on a simplified cascade consisting of three blades. The primary advantage lies in significantly reducing the computational cost, as the new model is several orders of magnitude faster than traditional CFD methods for evaluations, though training the model remains computationally intensive. The convolutional neural network can accurately predict the unsteady flow field, as demonstrated in validation examples. In the next step, a composition algorithm is proposed to combine several simplified cases, enabling the solution of a cascade with any number of blades.
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来源期刊
CiteScore
5.40
自引率
4.20%
发文量
437
审稿时长
3.0 months
期刊介绍: The Journal of Computational and Applied Mathematics publishes original papers of high scientific value in all areas of computational and applied mathematics. The main interest of the Journal is in papers that describe and analyze new computational techniques for solving scientific or engineering problems. Also the improved analysis, including the effectiveness and applicability, of existing methods and algorithms is of importance. The computational efficiency (e.g. the convergence, stability, accuracy, ...) should be proved and illustrated by nontrivial numerical examples. Papers describing only variants of existing methods, without adding significant new computational properties are not of interest. The audience consists of: applied mathematicians, numerical analysts, computational scientists and engineers.
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