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diff --git a/Fluid_Mechanics_by_John_F._Douglas/Chapter_20.ipynb b/Fluid_Mechanics_by_John_F._Douglas/Chapter_20.ipynb new file mode 100755 index 00000000..f24f7af6 --- /dev/null +++ b/Fluid_Mechanics_by_John_F._Douglas/Chapter_20.ipynb @@ -0,0 +1,115 @@ +{ + "metadata": { + "name": "", + "signature": "sha256:042171008edad2dcea90c81036564026ff0ecc789ee16d3a2ccb0122fde141e9" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Chapter 20: Pressure Transient Theory and Surge Control" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 20.3, Page 692" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "import math\n", + "\n", + "\n", + " #Initializing the variables\n", + "c = 1250;\n", + "Dt = 0.02;\n", + "Dv = 0.5;\n", + "rho = 1000;\n", + "v =0.5;\n", + "\n", + " #Calculations\n", + "cDt = c*Dt;\n", + "Dp = rho*c*Dv;\n", + "DOv_DOt = Dv/Dt;\n", + "vDOv_DOt = v*Dv/cDt;\n", + "DOp_DOt = Dp/Dt;\n", + "vDOp_DOx = v*Dp/cDt;\n", + "Error = [vDOv_DOt*100/DOv_DOt ,vDOp_DOx*100/DOp_DOt];\n", + "print \"The percentage errors are :\",Error,\"\\nThese are very small hence can be neglected\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The percentage errors are : [0.04, 0.04] \n", + "These are very small hence can be neglected\n" + ] + } + ], + "prompt_number": 2 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 20.5, Page 705" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "import math\n", + "\n", + "\n", + " #Initializing the variables\n", + "f = 0;\n", + "Atunnel = 1.227;\n", + "Ashaft = 12.57;\n", + "Q =2;\n", + "L = 200;\n", + "g = 9.81; \n", + "\n", + " #Calculations\n", + "Zmax = (Q/Ashaft)*(Ashaft*L/(Atunnel*g))**0.5;\n", + "T = 2*math.pi*(Ashaft*L/(Atunnel*g))**0.5;\n", + "\n", + "print \"Peak water level (m) :\",round(Zmax,3)\n", + "print \"Mass Oscillation Period (s) :\",round(T,1)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Peak water level (m) : 2.299\n", + "Mass Oscillation Period (s) : 90.8\n" + ] + } + ], + "prompt_number": 3 + } + ], + "metadata": {} + } + ] +}
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