From d36fc3b8f88cc3108ffff6151e376b619b9abb01 Mon Sep 17 00:00:00 2001 From: kinitrupti Date: Fri, 12 May 2017 18:40:35 +0530 Subject: Revised list of TBCs --- .../Chapter_2_Electric_Fields.ipynb | 296 --------------------- 1 file changed, 296 deletions(-) delete mode 100755 sample_notebooks/Vedantam Lakshmi Manasa/Chapter_2_Electric_Fields.ipynb (limited to 'sample_notebooks/Vedantam Lakshmi Manasa/Chapter_2_Electric_Fields.ipynb') diff --git a/sample_notebooks/Vedantam Lakshmi Manasa/Chapter_2_Electric_Fields.ipynb b/sample_notebooks/Vedantam Lakshmi Manasa/Chapter_2_Electric_Fields.ipynb deleted file mode 100755 index cdc8b25e..00000000 --- a/sample_notebooks/Vedantam Lakshmi Manasa/Chapter_2_Electric_Fields.ipynb +++ /dev/null @@ -1,296 +0,0 @@ -{ - "cells": [ - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "# Chapter 2 Electric Fields" - ] - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "## Example 2_5 pgno:65" - ] - }, - { - "cell_type": "code", - "execution_count": 2, - "metadata": { - "collapsed": false - }, - "outputs": [ - { - "name": "stdout", - "output_type": "stream", - "text": [ - "Maximum field = V/m per volt 42064315640.1\n" - ] - } - ], - "source": [ - "#Chapter 2, Example 5, page 65\n", - "#Calculate the maximum field at the sphere surface\n", - "#Calulating Field at surface E based on figure 2.31 and table 2.3\n", - "from math import pi\n", - "Q1 = 0.25\n", - "e0 = 8.85418*10**-12 #Epselon nought\n", - "RV1= ((1/0.25**2)+(0.067/(0.25-0.067)**2)+(0.0048/(0.25-0.067)**2))\n", - "RV2= ((0.25+0.01795+0.00128)/(0.75-0.067)**2)\n", - "RV= RV1+RV2\n", - "E = (Q1*RV)/(4*pi*e0)\n", - "print\"Maximum field = V/m per volt\",E\n", - "\n", - "#Answers vary due to round off error\n" - ] - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "## Example 2_6 pgno:66" - ] - }, - { - "cell_type": "code", - "execution_count": null, - "metadata": { - "collapsed": true - }, - "outputs": [], - "source": [ - "#Chapter 2, Exmaple 6, page 66\n", - "#calculation based on figure 2.32\n", - "\n", - "#(a)Charge on each bundle\n", - "print\"Part a\\t\"\n", - "req = (0.0175*0.45)**0.5\n", - "print\"Equivalent radius = m \", req\n", - "from math import log\n", - "from math import pi\n", - "V = 400*10**3 #Voltage\n", - "H = 12. #bundle height in m\n", - "d = 9. #pole to pole spacing in m\n", - "e0 = 8.85418*10**-12 #Epselon nought\n", - "Hd = ((2*H)**2+d**2)**0.5#2*H**2 + d**2\n", - "Q = V*2*pi*e0/(log((2*H/req))-log((Hd/d)))\n", - "q = Q/2\n", - "print\"Charge per bundle = uC/m \",Q #micro C/m\n", - "print\"Charge per sunconducter = uC/m \",q #micro C/m\n", - "\n", - "#(b part i)Maximim & average surface feild\n", - "print\"\\tPart b\"\n", - "print\"\\tSub part 1\\t\"\n", - "r = 0.0175 #subconductor radius\n", - "R = 0.45 #conductor to subconductor spacing\n", - "MF = (q/(2*pi*e0))*((1/r)+(1/R)) # maximum feild\n", - "print\"Maximum feild = kV/m \\t\",MF\n", - "MSF = (q/(2*pi*e0))*((1/r)-(1/R)) # maximum surface feild\n", - "print\"Maximum feild = kV/m \\t\",MSF\n", - "ASF = (q/(2*pi*e0))*(1/r) # Average surface feild\n", - "print\"Maximum feild = kV/m \\t\",ASF\n", - "\n", - "#(b part ii) Considering the two sunconductors on the left\n", - "print\"\\tSub part 2\\t\"\n", - "#field at the outer point of subconductor #1 \n", - "drO1 = 1/(d+r)\n", - "dRrO1 = 1/(d+R+r)\n", - "EO1 = MF -((q/(2*pi*e0))*(drO1+dRrO1))\n", - "print\"EO1 = kV/m \\t\",EO1\n", - "#field at the outer point of subconductor #2 \n", - "drO2 = 1/(d-r)\n", - "dRrO2 = 1/(d-R-r)\n", - "EO2 = MF -((q/(2*pi*e0))*(dRrO2+drO2))\n", - "print\"EO2 = kV/m \\t\",EO2\n", - "\n", - "#field at the inner point of subconductor #1 \n", - "drI1 = 1/(d-r)\n", - "dRrI1 = 1/(d+R-r)\n", - "EI1 = MSF -((q/(2*pi*e0))*(drI1+dRrI1))\n", - "print\"EI1 = kV/m \\t\",EI1\n", - "#field at the inner point of subconductor #2 \n", - "drI2 = 1/(d+r)\n", - "dRrI2 = 1/(d-R+r)\n", - "EI2 = MSF -((q/(2*pi*e0))*(dRrI2+drI2)) \n", - "print\"EI2 = kV/m \\t\",EI2\n", - "\n", - "#(part c)Average of the maximim gradient\n", - "print\"\\tPart c\\t\"\n", - "Eavg = (EO1+EO2)/2\n", - "print\"The average of the maximum gradient = kV/m \\t\",Eavg\n", - "\n", - "\n", - "#Answers might vary due to round off error\n" - ] - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "## Example 2_7 pgno:69" - ] - }, - { - "cell_type": "code", - "execution_count": 4, - "metadata": { - "collapsed": false - }, - "outputs": [ - { - "name": "stdout", - "output_type": "stream", - "text": [ - "Electric Feild = V/m \t30015596280.4\n" - ] - } - ], - "source": [ - "#Chapter 2, Exmaple 7, page 69\n", - "#Electric feild induced at x\n", - "from math import pi\n", - "e0 = 8.85418*10**-12 #Epselon nought\n", - "q = 1 # C/m\n", - "C = (q/(2*pi*e0))\n", - "#Based on figure 2.33\n", - "E = C-(C*(1./3.+1./7.))+(C*(1+1./5.+1./9.))+(C*(1./5.+1./9.))-(C*(1./3.+1./7.))\n", - "print\"Electric Feild = V/m \\t\",E\n", - "\n", - "#Answers might vary due to round off error\n" - ] - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "## Example 2_8 pgno:70" - ] - }, - { - "cell_type": "code", - "execution_count": 5, - "metadata": { - "collapsed": false - }, - "outputs": [ - { - "name": "stdout", - "output_type": "stream", - "text": [ - "\n", - "Thickness of graded design= cm 4.24264068712\n", - "Curve = cm**2 62.4264068712\n", - "V1 = cm**3 47402.906725\n", - "Thickness of regular design = cm 14.684289433\n", - "V2 = cm**3 861.944682812\n" - ] - } - ], - "source": [ - "#Chapter 2, Exmaple 8, page 70\n", - "#Calculate the volume of the insulator\n", - "#Thinkness of graded design\n", - "from math import e\n", - "from math import pi\n", - "V = 150*(2)**0.5\n", - "Ebd = 50\n", - "T = V/Ebd\n", - "print\"\\nThickness of graded design= cm \",T\n", - "#Based on figure 2.24\n", - "r = 2 # radius of the conductor\n", - "l = 10 #length of graded cylinder; The textbook uses 10 instead of 20\n", - "zr = l*(T+r)\n", - "print\"Curve = cm**2 \",zr\n", - "#Volume of graded design V1\n", - "V1 = 4*pi*zr*(zr-r)\n", - "print\"V1 = cm**3 \",V1 #Unit is wrong in the textbook\n", - "#Thickness of regular design as obtained form Eq.2.77\n", - "pow = V/(2*Ebd)\n", - "t = 2*(e**pow-1)\n", - "print\"Thickness of regular design = cm \",t\n", - "#Volume of regular design V2\n", - "V2 = pi*((2+t)**2-4)\n", - "print\"V2 = cm**3 \",V2#unit not mentioned in textbook\n", - " \n", - "#Answers may vary due to round off error\n" - ] - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "## Example 2_11 pgno:75" - ] - }, - { - "cell_type": "code", - "execution_count": 6, - "metadata": { - "collapsed": false - }, - "outputs": [ - { - "name": "stdout", - "output_type": "stream", - "text": [ - "The values of Phi2 and Phi4 are: [[ -3.6568 326.5 ]\n", - " [ 261.92857143 -4.37537287]]\n" - ] - } - ], - "source": [ - "#Chapter 2, Exmaple 11, page 75\n", - "#Calculate the potential within the mesh\n", - "#Based on figure 2.38(b)\n", - "#equations are obtained using Eq.2.46\n", - "import numpy\n", - "from numpy import linalg\n", - "A1 = 1/2*(0.54+0.16)\n", - "A2 = 1/2*(0.91+0.14)\n", - "S = numpy.matrix([[0.5571, -0.4571, -0.1],[-0.4751, 0.828, 0.3667],[-0.1, 0.667, 0.4667]])\n", - "#By obtaining the elements of the global stiffness matrix(Sadiku,1994)\n", - "#and by emplying the Eq.2.49(a)\n", - "S1 = numpy.matrix([[1.25, -0.014],[-0.014, 0.8381]])\n", - "S2 = numpy.matrix([[-0.7786, -0.4571],[-0.4571, -0.3667]])\n", - "Phi13 = numpy.matrix([[0], [10]])\n", - "val1 = S2*Phi13\n", - "Phi24 = val1/S1\n", - "print\"The values of Phi2 and Phi4 are:\",Phi24\n", - "\n", - "#Answers may vary due to round of error \n", - "\n" - ] - }, - { - "cell_type": "code", - "execution_count": null, - "metadata": { - "collapsed": true - }, - "outputs": [], - "source": [] - } - ], - "metadata": { - "kernelspec": { - "display_name": "Python 2", - "language": "python", - "name": "python2" - }, - "language_info": { - "codemirror_mode": { - "name": "ipython", - "version": 2 - }, - "file_extension": ".py", - "mimetype": "text/x-python", - "name": "python", - "nbconvert_exporter": "python", - "pygments_lexer": "ipython2", - "version": "2.7.9" - } - }, - "nbformat": 4, - "nbformat_minor": 0 -} -- cgit