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pinn-incompressive-laminar-cylinder's Introduction

论文复现 PINN

论文:Physics-informed deep learning for incompressible laminar flows

与经典PINN框架的区别:

  1. 采用流函数的梯度信息求速度

  2. 引入柯西应力张量

计算域

模型框架

稳态问题

动力粘性 $0.02 kg/(m \cdot s)$

密度 $1.0 kg/m^3$

入口流速

$u(0, y)=4U_{max}(H-y)y/H^2$

$U_{max}=1.0 m/s$

稳态结果

瞬态问题

动力粘性 $0.005 kg/(m \cdot s)$

密度 $1.0 kg/m^3$

入口流速

$u(0, y)=4[\sin(\frac{2 \pi t}{T} + \frac{3 \pi }{2}) + 1]U_{max}(H-y)y/H^2$

$U_{max} = 0.5 m/s$

$T = 1.0 s$

瞬态结果

文件结构

data

  • 2D_cylinder
    • mixed
      • steady_data.mat 训练数据
      • steady_Fluent.mat fluent的计算结果
      • unsteady_data.mat 训练数据
    • paddle_openfoam
      • inital
      • probe 监督点数据
      • steady_data.mat
      • domain_cylinder.csv
      • domain_inlet.csv
      • domain_outlet.csv
      • domain_train.csv 计算residual的数据

pinn_cylinder

  • basic-model.py PINN 基础模型
  • run_steady.py 稳态复现
  • run_unsteady.py 瞬态复现
  • run_steady_classical.py 采用经典PINN预测稳态
  • visual_data.py _画图

pinn-incompressive-laminar-cylinder's People

Contributors

jxingli avatar yunbattle1994 avatar

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