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{
"metadata": {
"name": "",
"signature": "sha256:130e6e124bfc557e016f12e2356b74f1d97ea210c47b1944be1ebda3297e63a8"
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 16: Non-Uniform Flow in Open Channels"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 16.2, Page 541"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"from __future__ import division\n",
"import math\n",
"\n",
"\n",
" #Initializing the variables\n",
"B = [1.4 ,0.9];\n",
"D = [0.6 ,0.32];\n",
"g = 9.81;\n",
"h = 0.03;\n",
"Z = 0.25; \n",
"\n",
" #Calculations\n",
"Q1 = B[1]*D[1]*(2*g*h/(1-(B[1]*D[1]/B[0]*D[0])**2))**0.5\n",
"E = D[0]-Z;\n",
"Q2 = 1.705*B[1]*E**1.5;\n",
"\n",
"print \"Volume flow rate (m3/s) :\",round(Q2,4) "
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Volume flow rate (m3/s) : 0.3177\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 16.3, Page 546"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"from __future__ import division\n",
"import math\n",
"\n",
"\n",
" #Initializing the variables\n",
"a =0.5;\n",
"b = 0.5;\n",
"Dn = 1.2;\n",
"s = 1/1000;\n",
"C = 55;\n",
"g = 9.81;\n",
"\n",
" #Calculations\n",
"c = (1+a)/b; \n",
"QbyB = Dn*C*(Dn*s)**0.5;\n",
"q = QbyB;\n",
"Dc = (q**2/g)**(1/3);\n",
"\n",
"header = \"Mean Depth(Dm) Numenator Denominator\\t L\"\n",
"unit = \" (m) \\t \\t \\t \\t(m)\"\n",
"\n",
"m=[]\n",
"Dm=[]\n",
"N=[]\n",
"D=[]\n",
"Lm=[]\n",
"total=0\n",
"for c in range(7): \n",
" m.append(2.4-0.15*c);\n",
" Dm.append((m[c]+m[c]-0.15)/2); \n",
" N.append(1 - (Dc/Dm[c])**3) ; # Numerator\n",
" D.append(1 - (Dn/Dm[c])**3); # Denominator\n",
" Lm.append(150*(N[c]/D[c]));\n",
" total = total +Lm[c];\n",
"\n",
"print header\n",
"print unit\n",
"for c in range(7):\n",
" mm=str(Dm[c])+'\\t '+str(round(N[c],4))+' '+str(round(D[c],4))+' \\t'+str(round(Lm[c],2))\n",
" print mm\n",
" \n",
"print \"\\ndistance upstream covered (approx in m):\",round(total)"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Mean Depth(Dm) Numenator Denominator\t L\n",
" (m) \t \t \t \t(m)\n",
"2.325\t 0.9576 0.8625 \t166.54\n",
"2.175\t 0.9482 0.8321 \t170.94\n",
"2.025\t 0.9358 0.7919 \t177.26\n",
"1.875\t 0.9192 0.7379 \t186.86\n",
"1.725\t 0.8962 0.6634 \t202.65\n",
"1.575\t 0.8636 0.5577 \t232.27\n",
"1.425\t 0.8159 0.4028 \t303.8\n",
"\n",
"distance upstream covered (approx in m): 1440.0\n"
]
}
],
"prompt_number": 2
}
],
"metadata": {}
}
]
}
|
