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+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:cffb7499e644cbe142eb25461633ec2cdaafe8ff11e84d4c7e11093fb9322221"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Chapter 7 : Similitude and Dimensional Analysis"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 7.2 Page No : 192"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\t\n",
+      "#Initialization of variables\n",
+      "Dratio = 8.\n",
+      "mu = 0.0006\n",
+      "rho = 52/32.2\n",
+      "vm = 1.22*10**-5 \t# lbs/ft**2\n",
+      "V = 45.             # velocity - fps\n",
+      "Fm = 0.8\n",
+      "\t\n",
+      "#calculations\n",
+      "vp = round(mu/rho,7)\n",
+      "Vm = vm*V/(Dratio*vp)\n",
+      "Fratio = rho*V**2 /(1.94*Vm**2 *Dratio**2)\n",
+      "Fp = Fratio*Fm\n",
+      "\n",
+      "#Results\n",
+      "print \"velocity  =  %.2f fps\"%(Vm)\n",
+      "print \" Drag force  =  %d lb\"%(Fp)\n",
+      "\n",
+      "# note : The answer given in textbook for vp is wrong. Hence, the difference in answers\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "velocity  =  0.18 fps\n",
+        " Drag force  =  617 lb\n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 7.3 Page No : 195"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math \n",
+      "\t\n",
+      "#Initialization of variables\n",
+      "L = 50.\n",
+      "Fm = 0.02 \t#N\n",
+      "Vm = 1. \t#m/s\n",
+      "\t\n",
+      "#calculations\n",
+      "Fp = L**3 *Fm \n",
+      "Fp = Fp*0.2248\n",
+      "Vp = math.sqrt(L) *Vm\n",
+      "Vp = Vp*3.28\n",
+      "Hp = Fp*Vp/550\n",
+      "\t\n",
+      "#Results\n",
+      "print \"Required horsepower  =  %.1f hp\"%(Hp)\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Required horsepower  =  23.7 hp\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
+\ No newline at end of file