{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Meandering river"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import numpy as np\n",
    "\n",
    "import timflow.transient as tft"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "ml = tft.Model3D(\n",
    "    kaq=[2, 1, 5, 10, 4],\n",
    "    z=[10, 8, 6, 4, 2, 0],\n",
    "    Saq=[0.1, 0.0001, 0.0002, 0.0002, 0.0001],\n",
    "    topboundary=\"phreatic\",\n",
    "    kzoverkh=0.1,\n",
    "    tmin=1,\n",
    "    tmax=10,\n",
    ")\n",
    "w = tft.Well(ml, -25, 0, rw=0.3, tsandQ=[(0, 100)], layers=[2, 3])\n",
    "\n",
    "dxdy = 30 * np.pi / 100 * np.cos(np.pi)\n",
    "x1 = np.arange(-150, -100, 10)\n",
    "y1 = (x1 + 100) * dxdy\n",
    "x2 = np.linspace(-100, 100, 20)\n",
    "y2 = 30 * np.sin(x2 * np.pi / 100)\n",
    "yls = np.hstack((y1, y2))\n",
    "xls = np.hstack((x1, x2))\n",
    "xy = np.array([xls, yls]).T\n",
    "\n",
    "ls1 = tft.RiverString(ml, xy=xy, tsandh=\"fixed\", layers=[0, 1])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "ml.solve()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "ml.plots.contour(win=[-150, 150, -50, 50], ngr=40, t=1, layers=1, labels=False);"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "ml.plots.contour(win=[-150, 150, -50, 50], ngr=40, t=1, layers=2, labels=False);"
   ]
  }
 ],
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