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-{
- "metadata": {
-  "name": "",
-  "signature": "sha256:50af8d3cf8d660e7f072a797c56082a406513e091b4f2f4b68a912e6ceab549d"
- },
- "nbformat": 3,
- "nbformat_minor": 0,
- "worksheets": [
-  {
-   "cells": [
-    {
-     "cell_type": "heading",
-     "level": 1,
-     "metadata": {},
-     "source": [
-      "CHAPTER19:TURBULENT BOUNDARY LAYERS"
-     ]
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Example E01 : Pg 612"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "# All the quantities are expressed in SI units\n",
-      "# (a)\n",
-      "import math \n",
-      "from math import sqrt\n",
-      "Re_c = 1.36e7;                    # as obtained from ex. 18.1a\n",
-      "rho_inf = 1.22;                   # freestream air denstiy\n",
-      "S = 40.;                           # plate planform area\n",
-      "# hence, from eq.(19.2)\n",
-      "Cf = 0.074/Re_c**0.2;\n",
-      "V_inf = 100.;\n",
-      "# hence, for one side of the plate\n",
-      "D_f = 1./2.*rho_inf*V_inf**2.*S*Cf;\n",
-      "# the total drag on both the surfaces is\n",
-      "D = 2.*D_f;\n",
-      "print\"The total frictional drag is: (a)D =\",D,\"N\"\n",
-      "# (b)\n",
-      "Re_c = 1.36e8;                    # as obtained from ex. 18.1b\n",
-      "# hence, from fig 19.1 we have\n",
-      "Cf = 1.34*10.**-3.;\n",
-      "V_inf = 1000.;\n",
-      "# hence, for one side of the plate\n",
-      "D_f = 1./2.*rho_inf*V_inf**2.*S*Cf;\n",
-      "# the total drag on both the surfaces is\n",
-      "D = 2.*D_f;\n",
-      "print\"(b) D =\",D,\"N\""
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "The total frictional drag is: (a)D = 1351.89748485 N\n",
-        "(b) D = 65392.0 N\n"
-       ]
-      }
-     ],
-     "prompt_number": 1
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Example E02 : Pg 612"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "# All the quantities are expressed in SI units\n",
-      "# from ex 18.2\n",
-      "import math\n",
-      "from math import sqrt\n",
-      "Re_c_star = 3.754e7;                # Reynolds number at the trailing edge of the plate\n",
-      "rho_star = 0.574;\n",
-      "ue = 1000.;                          # velocity of the upper plate\n",
-      "S = 40.;                             # plate planform area\n",
-      "# from eq.(19.3) we have\n",
-      "Cf_star = 0.074/Re_c_star**0.2;\n",
-      "# hence, for one side of the plate\n",
-      "D_f = 1./2.*rho_star*ue**2.*S*Cf_star;\n",
-      "# the total drag on both the surfaces is\n",
-      "D = 2.*D_f;\n",
-      "print\"The total frictional drag is:D =\",D,\"N\""
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "The total frictional drag is:D = 51916.421508 N\n"
-       ]
-      }
-     ],
-     "prompt_number": 2
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Example E03 : Pg 615"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "# All the quantities are expressed in SI units\n",
-      "Me = 2.94;                          # mach number of the flow over the upper plate\n",
-      "ue = 1000.;\n",
-      "Te = 288.;                           # temperature of the upper plate\n",
-      "ue = 1000.;                          # velocity of the upper plate\n",
-      "S = 40.;                             # plate planform area\n",
-      "Pr = 0.71;                          # Prandlt number of air at standard condition\n",
-      "gam = 1.4;                          # ratio of specific heats\n",
-      "\n",
-      "# the recovery factor is given as\n",
-      "r = Pr**(1./3.);\n",
-      "\n",
-      "# for M = 2.94\n",
-      "T_aw = Te*(1.+r*(2.74-1.));\n",
-      "T_w = T_aw;                          # since the flat plate has an adiabatic wall\n",
-      "\n",
-      "# from the Meador-Smart equation\n",
-      "T_star = Te*(0.5*(1.+T_w/Te) + 0.16*r*(gam-1.)/2.*Me**2.);\n",
-      "\n",
-      "# from the equation of state\n",
-      "p_star=1.\n",
-      "R=1.\n",
-      "rho_star = p_star/R/T_star;\n",
-      "\n",
-      "# from eq.(15.3)\n",
-      "mue0=1.\n",
-      "T0=1.\n",
-      "c=1.\n",
-      "mue_star = mue0*(T_star/T0)**1.5*(T0+110.)/(T_star+110.);\n",
-      "\n",
-      "# thus\n",
-      "Re_c_star = rho_star*ue*c/mue_star;\n",
-      "\n",
-      "# from eq.(18.22)\n",
-      "Cf_star = 0.02667/Re_c_star**0.139;\n",
-      "\n",
-      "# hence, the frictional drag on one surface of the plate is\n",
-      "D_f = 1./2.*rho_star*ue**2.*S*Cf_star;\n",
-      "\n",
-      "# thus, the total frictional drag is given by\n",
-      "D = 2.*D_f;\n",
-      "\n",
-      "print\"The total frictional drag is:D =\",D,\"N\""
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "The total frictional drag is:D = 4967.70450221 N\n"
-       ]
-      }
-     ],
-     "prompt_number": 3
-    }
-   ],
-   "metadata": {}
-  }
- ]
-}
-\ No newline at end of file