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diff --git a/Fluid_Mechanics/Chapter_10.ipynb b/Fluid_Mechanics/Chapter_10.ipynb
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-{
- "metadata": {
-  "name": "",
-  "signature": "sha256:03b40b6d5c44ff714aac13480905f296c46afa917e2740a687e8aa66bb21b428"
- },
- "nbformat": 3,
- "nbformat_minor": 0,
- "worksheets": [
-  {
-   "cells": [
-    {
-     "cell_type": "heading",
-     "level": 1,
-     "metadata": {},
-     "source": [
-      "Chapter 10: Laminar and Turbulent Flows in Bounded System"
-     ]
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Example 10.1, Page 329"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "from __future__ import division\n",
-      "import math\n",
-      "import sympy\n",
-      "from sympy import symbols,diff,solve\n",
-      "\n",
-      " #Initializing  the  variables\n",
-      "mu  =  0.9;\n",
-      "rho  =  1260;\n",
-      "g  =  9.81;\n",
-      "x  =  45;                                                                  #theta  in  degrees\n",
-      "P1  =  250  *  10**3;\n",
-      "P2  =  80*  10**3;\n",
-      "Z1  =  1;\n",
-      "Z2  =  0;                                                                  #  datum\n",
-      "U  =  -1.5;\n",
-      "Y  =  0.01;\n",
-      "\n",
-      " #Calculations\n",
-      "gradP1  =  P1+  rho*g*Z1;\n",
-      "gradP2  =  P2+  rho*g*Z2;\n",
-      "DPstar  =  (gradP1-gradP2)*math.sin(math.radians(x))/(Z1-Z2);\n",
-      "A  =  U/Y;                                                                #  Coefficient  U/Y  for  equation  10.6\n",
-      "B  =  DPstar/(2*mu)                                              #  Coefficient  dp*/dx  X(1/2mu)  for  equation  10.6\n",
-      "y  =  symbols('y')\n",
-      "v  =  round((A  +  B*Y),1)*y  -round(B)*y**2\n",
-      "duBYdy  =  diff(v,y);\n",
-      "tau  =  0.9*duBYdy;\n",
-      "stagPnts = solve(duBYdy,y)\n",
-      "ymax=stagPnts[0]                                      #value  of  y  where  derivative  vanishes.;\n",
-      "umax  =  (A + B*Y)*ymax  +  B*ymax**2;              #  Check  the  value  there  is  slight  mistake  in  books  answer\n",
-      "def  u(y):\n",
-      "    z  =  (A + B*Y)*y -B*y**2;\n",
-      "    return diff(z,y)\n",
-      "def dif(y):\n",
-      "    return round((A + B*Y)) -2*round(B)*y\n",
-      "\n",
-      "taumax=abs(mu*dif(Y))\n",
-      "\n",
-      "print \"velocity distribution         :\",v\n",
-      "print \"shear stress distribution     :\",mu*dif(y)\n",
-      "print \"maximum flow velocity (m/s)   :\",round(umax,2)\n",
-      "print \"Maximum Shear Stress  (kN/m^2):\",(round(taumax)/1000)\n",
-      "  \n",
-      "\n",
-      "print "
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "velocity distribution         : -71638.0*y**2 + 566.4*y\n",
-        "shear stress distribution     : -128948.4*y + 509.4\n",
-        "maximum flow velocity (m/s)   : 3.36\n",
-        "Maximum Shear Stress  (kN/m^2): 0.78\n",
-        "\n"
-       ]
-      }
-     ],
-     "prompt_number": 1
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Example 10.2, Page 335"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "from __future__ import division\n",
-      "import math\n",
-      "\n",
-      "\n",
-      " #Initializing  the  variables\n",
-      "mu  =  0.9;\n",
-      "rho  =  1260;\n",
-      "d  =  0.01;\n",
-      "Q  =  1.8/60*10**-3;                                              #Flow  in  m**3  per  second\n",
-      "l  =  6.5;\n",
-      "ReCrit  =  2000;\n",
-      " #Calculations\n",
-      "A  =  (math.pi*d**2)/4;\n",
-      "MeanVel  =  Q/A;\n",
-      "Re  =  rho*MeanVel*d/mu/10;                                    #  Check  properly  the  answer  in  book  there  is  something  wrong\n",
-      "Dp  =  128*mu*l*Q/(math.pi*d**4)\n",
-      "Qcrit  =  Q*ReCrit/Re*10**3;\n",
-      "\n",
-      "print \"Pressure Loss        (kN/m2) :\",round(Dp/1000,0)\n",
-      "print \"Maximum Flow rate (litres/s) :\",round(Qcrit,0)"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "Pressure Loss        (kN/m2) : 715.0\n",
-        "Maximum Flow rate (litres/s) : 112.0\n"
-       ]
-      }
-     ],
-     "prompt_number": 3
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Example 10.3, Page 341"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "from __future__ import division\n",
-      "import math\n",
-      "\n",
-      "\n",
-      " #Initializing  the  variables\n",
-      "mu  =  1.14*10**-3;\n",
-      "rho  =  1000;\n",
-      "d  =  0.04;\n",
-      "Q  =  4*10**-3/60;                                    #Flow  in  m**3  per  second\n",
-      "l  =  750;\n",
-      "ReCrit  =  2000;\n",
-      "g  =  9.81;\n",
-      "k  =  0.00008;                                       #  Absolute  Roughness\n",
-      "\n",
-      " #Calculations\n",
-      "A  =  (math.pi*d**2)/4;\n",
-      "MeanVel  =  Q/A;\n",
-      "Re  =  rho*MeanVel*d/mu;\n",
-      "Dp  =  128*mu*l*Q/(math.pi*d**4);\n",
-      "hL  =  Dp/(rho*g);\n",
-      "f  =  16/Re;\n",
-      "hlDa  =  4*f*l*MeanVel**2/(2*d*g);                   #  By  Darcy  Equation\n",
-      "Pa  =  rho*g*hlDa*Q;\n",
-      "\n",
-      " #Part(b)\n",
-      "Q  =  30*10**-3/60;                                  #Flow  in  m**3  per  second\n",
-      "MeanVel  =  Q/A;\n",
-      "Re  =  rho*MeanVel*d/mu;\n",
-      "RR  =  k/d;                                          #  relative  roughness\n",
-      "f  =  0.008                                          #by  Moody  diagram  for  Re  =    1.4  x  10**4    and  relative  roughness  =  0.002\n",
-      "hlDb  =  4*f*l*MeanVel**2/(2*d*g);                   #  By  Darcy  Equation\n",
-      "Pb  =  rho*g*hlDb*Q;\n",
-      "\n",
-      "\n",
-      "print \"!---- Case (a) ----!\\n\",\"Head Loss(mm)      :\",round(hlDa*1000,1)\n",
-      "print \"Power Required (W) :\",round(Pa,4)\n",
-      "print \"\\n!---- Case (b) ----!\\n\",\"Head Loss(m)       :\",round(hlDb,2)\n",
-      "print \"Power Required (W) :\",round(Pb,0)"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "!---- Case (a) ----!\n",
-        "Head Loss(mm)      : 92.5\n",
-        "Power Required (W) : 0.0605\n",
-        "\n",
-        "!---- Case (b) ----!\n",
-        "Head Loss(m)       : 4.84\n",
-        "Power Required (W) : 24.0\n"
-       ]
-      }
-     ],
-     "prompt_number": 4
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Example 10.4, Page 343"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "from __future__ import division\n",
-      "import math\n",
-      "\n",
-      "\n",
-      " #Initializing  the  variables\n",
-      "w  =  4.5;\n",
-      "d  =  1.2  ;\n",
-      "C  =  49;\n",
-      "i  =  1/800;\n",
-      "\n",
-      " #Calculations\n",
-      "A  =  d*w;\n",
-      "P  =  2*d  +  w;\n",
-      "m  =  A/P;\n",
-      "v  =  C*(m*i)**0.5;\n",
-      "Q  =  v*A;\n",
-      "\n",
-      "print \"Mean Velocity (m/s):\",round(v,2)\n",
-      "print \"Discharge (m3/s)   :\",round(Q,2)"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "Mean Velocity (m/s): 1.53\n",
-        "Discharge (m3/s)   : 8.28\n"
-       ]
-      }
-     ],
-     "prompt_number": 5
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Example 10.5, Page 348"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "from __future__ import division\n",
-      "import sympy\n",
-      "from sympy import symbols\n",
-      "\n",
-      " #Initializing  the  variables\n",
-      "r,R = symbols('r R')\n",
-      "\n",
-      "#Calculations\n",
-      "rbyR=round((1-(49/60)**7),3)\n",
-      "r = (rbyR)*R \n",
-      "\n",
-      "#Result\n",
-      "print \"radius at which actual velocity is equal to mean velocity is\",r"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "radius at which actual velocity is equal to mean velocity is 0.758*R\n"
-       ]
-      }
-     ],
-     "prompt_number": 2
-    },
-    {
-     "cell_type": "heading",
-     "level": 2,
-     "metadata": {},
-     "source": [
-      "Example 10.7, Page 355"
-     ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [
-      "from __future__ import division\n",
-      "import math\n",
-      "\n",
-      "\n",
-      " #Initializing  the  variables\n",
-      "d1  =  0.140;\n",
-      "d2  =  0.250;\n",
-      "DpF_DpR  =  0.6;                                       #Difference  in  head  loss  when  in  forward  and  in  reverse  direction\n",
-      "K  =  0.33                                             #From  table\n",
-      "g  =  9.81;\n",
-      " #Calculations\n",
-      "ratA  =  (d1/d2)**2;\n",
-      "v =(DpF_DpR*2*g/((1-ratA)**2-K))**0.5;\n",
-      "\n",
-      "print \"Velocity (m/s):\",round(v,2)"
-     ],
-     "language": "python",
-     "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "Velocity (m/s): 9.13\n"
-       ]
-      }
-     ],
-     "prompt_number": 8
-    }
-   ],
-   "metadata": {}
-  }
- ]
-}
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