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pull req #1

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d688f8e
salar version
salarjarhan Jan 21, 2019
e4cef36
salar nb
salarjarhan Jan 21, 2019
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300 changes: 300 additions & 0 deletions examples/lake_example/.ipynb_checkpoints/lake_example-checkpoint.ipynb
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{
"cells": [
{
"cell_type": "code",
"execution_count": 1,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"FloPy is using the following executable to run the model: C:\\WRDAPP\\mf2005.1_12\\bin\\mf2005.EXE\n",
"\n",
" MODFLOW-2005 \n",
" U.S. GEOLOGICAL SURVEY MODULAR FINITE-DIFFERENCE GROUND-WATER FLOW MODEL\n",
" Version 1.12.00 2/3/2017 \n",
"\n",
" Using NAME file: lake_example.nam \n",
" Run start date and time (yyyy/mm/dd hh:mm:ss): 2019/01/22 0:04:51\n",
"\n",
" Solving: Stress period: 1 Time step: 1 Ground-Water Flow Eqn.\n",
" Run end date and time (yyyy/mm/dd hh:mm:ss): 2019/01/22 0:04:53\n",
" Elapsed run time: 1.957 Seconds\n",
"\n",
" Normal termination of simulation\n"
]
}
],
"source": [
"import os\n",
"import numpy as np\n",
"import matplotlib.pyplot as plt\n",
"\n",
"\n",
"import flopy.modflow as mf\n",
"import flopy.utils as fu\n",
"import pprint\n",
"import shutil\n",
"\n",
"workspace = os.path.join('ascii')\n",
"output = os.path.join('output')\n",
"\n",
"# delete directories if existing\n",
"if os.path.exists(workspace):\n",
" shutil.rmtree(workspace)\n",
"\n",
"if os.path.exists(output):\n",
" shutil.rmtree(output)\n",
"\n",
"if not os.path.exists(workspace):\n",
" os.makedirs(workspace)\n",
"\n",
"if not os.path.exists(output):\n",
" os.makedirs(output)\n",
"\n",
"name = 'lake_example'\n",
"\n",
"# --- Setting up the parameters\n",
"# Groundwater heads\n",
"h1 = 100 #in the boundaries\n",
"h2 = 90 # water-level-lake\n",
"\n",
"# Number of layers\n",
"Nlay = 10\n",
"\n",
"# Number of columns and rows\n",
"# we are assuming that NCol = NRow\n",
"N = 101 \n",
"\n",
"# The length and with of the model\n",
"L = 400.0 \n",
"\n",
"# The height of the model\n",
"H = 50.0 \n",
"k = 1.0\n",
"\n",
"# Intstantiating the Modflow-Object, ml is here an invented name\n",
"ml = mf.Modflow(modelname=name, exe_name='mf2005', version='mf2005', model_ws=workspace)\n",
"\n",
"# Calculation of the bottom-height of each layer\n",
"# more information: http://docs.scipy.org/doc/numpy-1.10.0/reference/generated/numpy.linspace.html\n",
"bot = np.linspace(-H/Nlay,-H,Nlay) \n",
"# result is: \n",
"# array([ -5., -10., -15., -20., -25., -30., -35., -40., -45., -50.])\n",
"\n",
"\n",
"# calculation of row-width and col-width\n",
"delrow = delcol = L/(N-1) \n",
"# result is: \n",
"# 4\n",
"\n",
"# instantiante the discretization object\n",
"dis = mf.ModflowDis(ml, nlay=Nlay, nrow=N, ncol=N, delr=delrow, delc=delcol, top=0.0, botm=bot, laycbd=0)\n",
"\n",
"# helping-variable\n",
"Nhalf = (N-1)/2 \n",
"\n",
"# iBound-Configuration\n",
"# http://water.usgs.gov/nrp/gwsoftware/modflow2000/MFDOC/index.html?bas6.htm\n",
"# If IBOUND(J,I,K) < 0, cell J,I,K has a constant head.\n",
"# If IBOUND(J,I,K) = 0, cell J,I,K is inactive.\n",
"# If IBOUND(J,I,K) > 0, cell J,I,K is active.\n",
"#\n",
"# every cell in the model has to be defined\n",
"# create an 3-dimensional ibound-array with all cells=1\n",
"ibound = np.ones((Nlay,N,N)) \n",
"# result is:\n",
"# array([[[ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# ..., \n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.]],\n",
"# \n",
"# [[ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# ..., \n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.]],\n",
"# \n",
"# [[ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# ..., \n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.]],\n",
"# \n",
"# ..., \n",
"# [[ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# ..., \n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.]],\n",
"# \n",
"# [[ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# ..., \n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.]],\n",
"# \n",
"# [[ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# ..., \n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.],\n",
"# [ 1., 1., 1., ..., 1., 1., 1.]]])\n",
"\n",
"\n",
"# Set all elements in the first row to -1\n",
"ibound[:,0,:] = -1 \n",
"\n",
"# Set all elements in the last row to -1\n",
"ibound[:,-1,:] = -1\n",
"\n",
"# Set every first element of every column to -1\n",
"ibound[:,:,0] = -1\n",
"\n",
"# Set every last element of every column to -1\n",
"ibound[:,:,-1] = -1\n",
"\n",
"#result is:\n",
"#array([[[-1., -1., -1., ..., -1., -1., -1.],\n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# ..., \n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# [-1., -1., -1., ..., -1., -1., -1.]],\n",
"#\n",
"# [[-1., -1., -1., ..., -1., -1., -1.],\n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# ..., \n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# [-1., -1., -1., ..., -1., -1., -1.]],\n",
"#\n",
"# [[-1., -1., -1., ..., -1., -1., -1.],\n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# ..., \n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# [-1., -1., -1., ..., -1., -1., -1.]],\n",
"#\n",
"# ..., \n",
"# [[-1., -1., -1., ..., -1., -1., -1.],\n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# ..., \n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# [-1., -1., -1., ..., -1., -1., -1.]],\n",
"#\n",
"# [[-1., -1., -1., ..., -1., -1., -1.],\n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# ..., \n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# [-1., -1., -1., ..., -1., -1., -1.]],\n",
"#\n",
"# [[-1., -1., -1., ..., -1., -1., -1.],\n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# ..., \n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# [-1., 1., 1., ..., 1., 1., -1.],\n",
"# [-1., -1., -1., ..., -1., -1., -1.]]])\n",
"\n",
"# set center cell in upper layer to constant head (-1)\n",
"Nhalf=int(Nhalf)\n",
"ibound[0,Nhalf,Nhalf] = -1 \n",
"\n",
"# defining the start-values\n",
"# in the calculation only the -1 cells will be considered\n",
"#\n",
"# all values are set to h1\n",
"start = h1 * np.ones((N,N))\n",
"# and the center value is set to h2\n",
"start[Nhalf,Nhalf] = h2\n",
"\n",
"# instantiate the modflow-basic package with iBound and startvalues\n",
"bas = mf.ModflowBas(ml,ibound=ibound,strt=start)\n",
"\n",
"# set the aquifer properties with the lpf-package\n",
"lpf = mf.ModflowLpf(ml, hk=k)\n",
" \n",
"# instantiation of the solver with default values\n",
"pcg = mf.ModflowPcg(ml)\n",
"\n",
"# instantiation of the output control with default values\n",
"oc = mf.ModflowOc(ml)\n",
"\n",
"ml.write_input()\n",
"ml.run_model()\n",
"\n",
"hds = fu.HeadFile(os.path.join(workspace, name+'.hds'))\n",
"h = hds.get_data(kstpkper=(0, 0))\n",
"\n",
"x = y = np.linspace(0, L, N)\n",
"c = plt.contour(x, y, h[0], np.arange(90,100.1,0.2))\n",
"plt.clabel(c, fmt='%2.1f')\n",
"plt.axis('scaled');\n",
"plt.savefig(os.path.join(output, name+'_1.png'))\n",
"plt.close()\n",
"\n",
"x = y = np.linspace(0, L, N)\n",
"c = plt.contour(x, y, h[-1], np.arange(90,100.1,0.2))\n",
"plt.clabel(c, fmt='%1.1f')\n",
"plt.axis('scaled');\n",
"plt.savefig(os.path.join(output, name+'_2.png'))\n",
"plt.close()\n",
"\n",
"z = np.linspace(-H/Nlay/2, -H+H/Nlay/2, Nlay)\n",
"c = plt.contour(x, z, h[:,50,:], np.arange(90,100.1,.2))\n",
"plt.axis('scaled');\n",
"plt.savefig(os.path.join(output, name+'_3.png'))\n",
"plt.close()"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": []
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3",
"language": "python",
"name": "python3"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.7.1"
}
},
"nbformat": 4,
"nbformat_minor": 2
}
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