The paper discusses Newton's method and its hybrid with machine learning for solving the steady state Navier-Stokes Darcy model. It introduces a Newton iterative method for solving the discretized problem and proposes a deep learning algorithm for solving the nonlinear coupled problem. An Int-Deep algorithm is constructed by combining the two methods to enhance computational efficiency and robustness. The study focuses on the convergence analysis of iterative methods and the development of effective approaches for choosing initial guesses to improve computational performance. The paper also presents a detailed discussion on the Navier-Stokes Darcy problem and its finite element discretization. It provides theoretical results on the well-posedness and convergence of the finite element method. Additionally, the Int-Deep method is introduced, utilizing physics-informed neural networks and deep learning algorithms to solve the Navier-Stokes Darcy model efficiently.
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by Jianguo Huan... at arxiv.org 03-07-2024
https://arxiv.org/pdf/2401.10557.pdfDeeper Inquiries