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{
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"name": "",
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"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 8: Dimensional Analysis"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 8.1, Page 268"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"from __future__ import division\n",
"import math\n",
"\n",
"\n",
" #Initializing the variables\n",
"P1 = 57; #Power in SI\n",
"M = 1/14.6; #Ratio of mass in SI/British\n",
"L = 1/0.3048; #Ratio of length in SI/British\n",
"T = 1; #Ratio of time in SI/British\n",
"\n",
"#Calculations\n",
"'''\n",
"n1 is the horsepower and N1 is the corresponding number of British units (ft*lbf/second),\n",
"then N1 = 550*n1.\n",
"Similarly, for the SI system, n2 in kW,\n",
" N2 = 1000*n2\n",
"''' \n",
"N = (T**3)/(M*L**2) # N2/N1\n",
"n = N*550/1000 #n2/n1 \n",
"P2 = n*P1 ; #Power in kW\n",
"\n",
"print \"Power in kW :\",round(P2,1)\n",
"print \"Conversion Factor :\",round(n,3)"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Power in kW : 42.5\n",
"Conversion Factor : 0.746\n"
]
}
],
"prompt_number": 1
}
],
"metadata": {}
}
]
}
|
