heat exchanger (PaddlePaddle#693)

* add bubble datafile test=develop

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* add bubble code

* add bubble data

* add bubble code

* delete mat file

* delete mat file

* bubble code

* delete mat file

* add some modify

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* add some modification

* add some modification(test=document_fix)

* add some modification

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* add some code test=develop

* add some code test=develop

* add some code test=develop

* add some code test=develop

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docs/zh/api/arch.md

@@ -20,5 +20,6 @@
         - PrecipNet
         - UNetEx
         - NowcastNet
+        - HEDeepONets
       show_root_heading: true
       heading_level: 3

docs/zh/api/equation.md

@@ -7,6 +7,7 @@
         - PDE
         - FractionalPoisson
         - Biharmonic
+        - HeatExchanger
         - Laplace
         - LinearElasticity
         - NavierStokes

examples/heat_exchanger/conf/heat_exchanger.yaml

@@ -0,0 +1,91 @@
+hydra:
+  run:
+    # dynamic output directory according to running time and override name
+    dir: outputs/${now:%Y-%m-%d}/${now:%H-%M-%S}/${hydra.job.override_dirname}
+  job:
+    name: ${mode} # name of logfile
+    chdir: false # keep current working direcotry unchanged
+    config:
+      override_dirname:
+        exclude_keys:
+          - TRAIN.checkpoint_path
+          - TRAIN.pretrained_model_path
+          - EVAL.pretrained_model_path
+          - mode
+          - output_dir
+          - log_freq
+  sweep:
+    # output directory for multirun
+    dir: ${hydra.run.dir}
+    subdir: ./
+
+# general settings
+mode: train # running mode: train/eval
+seed: 42
+output_dir: ${hydra:run.dir}
+log_freq: 20
+
+# set working condition
+DL: 1.0  # lenth of the domain
+cp_c: 1.0 # specific heat capacity of cold boundary
+cp_h: 1.0 # specific heat capacity of hot boundary
+cp_w: 1.0 # specific heat capacity of wall
+v_h: 1.0 # flow rate of hot boundary
+v_c: 1.0 # flow rate of cold boundary
+alpha_h: 1.0 # surface efficiency*heat transfer coefficient*heat transfer area of hot boundary
+alpha_c: 1.0 # surface efficiency*heat transfer coefficient*heat transfer area of cold boundary
+L: 1.0 # flow length
+M: 1.0 # heat transfer structural quality
+T_hin: 10.0 # initial temperature of hot boundary
+T_cin: 1.0 # initial temperature of cold boundary
+T_win: 5.5 # initial temperature of wall
+NTIME: 20 # number of time steps
+NPOINT: 101 # number of points in the domain
+NQM: 60 # Number of branch network samples
+
+# model settings
+MODEL:
+  heat_input_keys: ['qm_h']
+  cold_input_keys: ['qm_c']
+  trunk_input_keys: ["x",'t']
+  output_keys: ["T_h",'T_c','T_w']
+  heat_num_loc: 1
+  cold_num_loc: 1
+  num_features: 100
+  branch_num_layers: 9
+  trunk_num_layers: 6
+  branch_hidden_size: 256
+  trunk_hidden_size: 128
+  branch_activation: "swish"
+  trunk_activation: "swish"
+  use_bias: True
+
+# training settings
+TRAIN:
+  epochs: 20000
+  iters_per_epoch: 1
+  eval_during_train: true
+  eval_freq: 1000
+  learning_rate: 0.001
+  batch_size: 1000
+  weight:
+    left_sup_constraint:
+      T_h: 20
+    right_sup_constraint:
+      T_h: 20
+    interior_sup_constraint:
+      heat_boundary: 1
+      cold_boundary: 1
+      wall: 20
+    initial_sup_constraint:
+      T_h: 1
+      T_c: 1
+      T_w: 20
+
+# evaluation settings
+EVAL:
+  pretrained_model_path: null
+
+# visualization settings
+qm_h: 1
+qm_c: 1