期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 46, 期 7, 页码 4947-4980出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2020.11.097
关键词
Hydrogen possessions; Reynolds and vogel models; Stretching flow; Nanofluid; Neural networks; Numerical solutions
This study aims to use neural networks and Levenberg-Marquardt backpropagation method to examine the dynamics of hydrogen possessions and variable viscosity in the fluidic system of electrically conducting copper and silver nanoparticles with mixed convection. The mathematical modeling of physical phenomena is reduced into nonlinear ordinary differential equations, and neural network models are used to calculate solutions for different scenarios created by varying physical parameters. The accuracy of the neural network model in solving fluid flow problems is validated and verified through mean squared error, error histograms, and regression studies.
The present study aims to provide an innovative stochastic numerical solver's application by the use of neural networks with Levenberg-Marquardt backpropagation to examine the dynamics of hydrogen possessions and variable viscosity in the fluidic system of electrically conducting copper and silver nanoparticles with mixed convection. The system of PDEs obtained by mathematical modeling of the physical phenomena are reduced into non-linear ODEs by utilizing suitable transformations. The ODEs dataset is constructed through Adams numerical solver and target parameters for input and output parameter of neural networks. The testing, validation and training processes are exploited in neural network models with learning based on backpropagation of LM method to calculate the solution for different scenarios created on variation of physical parameters of the proposed flow of Reynolds and Vogel models. Validation and verification of neural network model to find the solution of fluid flow problem is endorsed on the assessment of achieved accuracy through mean squared error, error histograms and regression studies. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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