{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "# Chapter 17: CANAL OUTLETS" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## Example 17.1: EX17_1.sce" ] }, { "cell_type": "code", "execution_count": null, "metadata": { "collapsed": true }, "outputs": [], "source": [ "\n", "\n", "//example 17.1\n", "//calculate discharge through the outlet\n", "clc;funcprot(0);\n", "//given\n", "D=100.0; //F.S.L of distributory\n", "wc=99.90; //F.S.L of water course\n", "L=9; //length of pipe\n", "d=20; //diameter of pipe\n", "f=0.005; //coefficient of friction\n", "g=9.81; //acceleration due to gravity\n", "\n", "H=D-wc; //working head\n", "C=(d/((1.5*d/(400*f)+L)*f))^0.5/20;\n", "A=%pi*d^2/(4*10000);\n", "q=C*A*(2*g*H)^0.5;\n", "q=round(q*10000)/10000;\n", "mprintf('discharge through the outlet=%f cumec.',q);" ] } , { "cell_type": "markdown", "metadata": {}, "source": [ "## Example 17.2: EX17_2.sce" ] }, { "cell_type": "code", "execution_count": null, "metadata": { "collapsed": true }, "outputs": [], "source": [ "\n", "\n", "//example 17.2\n", "//design a submerged pipe\n", "clc;funcprot(0);\n", "//given\n", "q=0.04; //discharge through outlet\n", "D=100.0; //F.S.L of distributing canal\n", "wc=99.90; //F.S.L of water course\n", "dep=1.1; //full supply depth distributing canal\n", "C=0.7; //average value of coefficient of discharge\n", "g=9.81; //acceleration due to gravity\n", "\n", "H=D-wc; //available head\n", "A=q/(C*(2*g*H)^0.5);\n", "d=(4*A/%pi)^0.5*100;\n", "d=round(d*10)/10;\n", "mprintf('diameter of pipe required=%f cm.',d);\n", "mprintf('\nuse pipe of diameter 25 cm.');" ] } , { "cell_type": "markdown", "metadata": {}, "source": [ "## Example 17.3: EX17_3.sce" ] }, { "cell_type": "code", "execution_count": null, "metadata": { "collapsed": true }, "outputs": [], "source": [ "\n", "//example 17.3\n", "//design submerged pipe\n", "clc;funcprot(0);\n", "//given\n", "q=0.04; //discharge through outlet\n", "D=100.0; //F.S.L of distributing canal\n", "wc=99.90; //F.S.L of water course\n", "dep=1.1; //full supply depth distributing canal\n", "f=0.01; //coefficient of friction\n", "g=9.81; //acceleration due to gravity\n", "L=9; //Length of pipe\n", "\n", "H=D-wc; //working head\n", "//first trial\n", "//taking d=22.8 cm\n", "d=22.8;\n", "C=(d/((1.5*d/(400*f)+L)*f))^0.5/20;\n", "A=q/(C*(2*g*H)^0.5);\n", "d=(4*A/%pi)^0.5*100;\n", "//second trial\n", "C=(d/((1.5*d/(400*f)+L)*f))^0.5/20;\n", "A=q/(C*(2*g*H)^0.5);\n", "d=(4*A/%pi)^0.5*100;\n", "d=round(d*100)/100;\n", "mprintf('diameter of pipe required=%f cm.',d);\n", "mprintf('\nprovide diameter of pipe as 25 cm.');\n", "\n", "" ] } , { "cell_type": "markdown", "metadata": {}, "source": [ "## Example 17.4: EX17_4.sce" ] }, { "cell_type": "code", "execution_count": null, "metadata": { "collapsed": true }, "outputs": [], "source": [ "\n", "\n", "//example 17.4\n", "//design an open flume outlet\n", "clc;funcprot(0);\n", "//given\n", "Q=0.06; //discharge\n", "D=0.85; //full supply depth\n", "Hw=15; //available working head\n", "Bt=7;C=1.6; //let us choose\n", "H=(Q*100/(C*Bt))^(2/3);\n", "mh=0.2*H; //minimum modular head\n", "mh=round(mh*1000)/1000;\n", "mprintf('minimum modular head=%f m. < available working head.\nhemce,design is safe.',mh);\n", "o=H/D;\n", "o=round(o*1000)/1000;\n", "mprintf('\nsetting of outlet=%f. <0.9.\nhence,outlet will work as hyper propotional outlet.',o);" ] } ], "metadata": { "kernelspec": { "display_name": "Scilab", "language": "scilab", "name": "scilab" }, "language_info": { "file_extension": ".sce", "help_links": [ { "text": "MetaKernel Magics", "url": "https://github.com/calysto/metakernel/blob/master/metakernel/magics/README.md" } ], "mimetype": "text/x-octave", "name": "scilab", "version": "0.7.1" } }, "nbformat": 4, "nbformat_minor": 0 }