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+{
+"cells": [
+ {
+		   "cell_type": "markdown",
+	   "metadata": {},
+	   "source": [
+       "# Chapter 2: Similarity"
+	   ]
+	},
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 2.1: Force_applied.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc\n",
+"//initialisation of variables\n",
+"clear\n",
+"r= 4\n",
+"l1= 4 //units\n",
+"l2= 10 //units\n",
+"//CALCULATIONS\n",
+"sxy= (4/r)\n",
+"sxy1= l1^2\n",
+"sxy2= l2^2\n",
+"//RESULTS\n",
+"printf ('x^2+4*y^2 = %.f ',sxy)\n",
+"printf ('\n x^2+4*y^2 = %.f ',sxy1)\n",
+"printf ('\n x^2+4*y^2 = %.f ',sxy2)"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 2.3: force_required.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc\n",
+"//initialisation of variables\n",
+"clear\n",
+"vo= 10 //ft/sec\n",
+"a= 0.5 //ft^-1\n",
+"b= 1 //ft\n",
+"x= -2 //ft\n",
+"y= 2 //ft\n",
+"b1= 2\n",
+"a1= 3/5 //ft\n",
+"//CALCULATIONS\n",
+"Vx= vo/(a*x^2+b)\n",
+"Vy= -2*a*b*vo*x*y/(a*x^2+b)^2\n",
+"V= sqrt(Vx^2+Vy^2)\n",
+"fx= -2*a*b^2*vo^2*x/(a*x^2+b)^3\n",
+"fy= 2*a*b^2*vo^2*y*(b-a*x^2)/(a*x^2+b)^4\n",
+"f= sqrt(fx^2+fy^2)\n",
+"r= b1^2/a1\n",
+"f1= f*r\n",
+"//RESULTS\n",
+"printf ('Vx = %.2f ft/sec',Vx)\n",
+"printf ('\n Vx = %.2f ft/sec',Vy)\n",
+"printf ('\n V = %.2f ft/sec',V)\n",
+"printf ('\n fx = %.2f ft/sec^2',fx)\n",
+"printf ('\n fy = %.2f ft/sec^2',fy)\n",
+"printf ('\n f = %.2f ft/sec^2',f)\n",
+"printf ('\n r = %.2f in the present case',r)\n",
+"printf ('\n f1 = %.2f ft/sec^2',f1)"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 2.4: force_at_the_end.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc\n",
+"//initialisation of variables\n",
+"clear\n",
+"r= 1/5\n",
+"b1= 2 //ft\n",
+"a1= 3/5 //ft\n",
+"//CALCULATIONS\n",
+"r= (a1*b1)^2*r\n",
+"//RESULTS\n",
+"printf ('ratio of resultant forces acting on coorresponding fluid elements = %.2f ',r)"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 2.5: air_speed.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc\n",
+"//initialisation of variables\n",
+"clear\n",
+"vos= 70 //ft/sec\n",
+"as= 78 //ft\n",
+"am= 72 //ft\n",
+"ls1= 6 //ft\n",
+"lm= 2 //ft\n",
+"um= 386 //ft/sec\n",
+"us= 372 //ft/sec\n",
+"dm= 0.4\n",
+"//CALCULATIONS\n",
+"vom= vos*as*ls1*um/(am*lm*us)\n",
+"Ds= dm*(am/as)*(us/um)^2\n",
+"//RESULTS\n",
+"printf ('Air speed = %.f ft/sec',vom)\n",
+"printf ('\n Ds = %.3f lbf',Ds)"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 2.6: ratio_of_resultant_forces.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc\n",
+"//initialisation of variables\n",
+"clear\n",
+"vom= 236 //ft/sec\n",
+"as= 0.072 //ft\n",
+"am= 62.4 //ft\n",
+"ls1= 2 //ft\n",
+"lm= 8 //ft\n",
+"um= 248 //ft/sec\n",
+"us= 3.86 //ft/sec\n",
+"r= 0.4/3.3\n",
+"//CALCULATIONS\n",
+"voh= vom*as*ls1*um/(am*lm*us)\n",
+"Ds= r*(as/am)*(um/us)^2*(ls1/lm)*(lm-ls1)\n",
+"//RESULTS\n",
+"printf ('Air speed = %.2f ft/sec',voh)\n",
+"printf ('\n Drag force = %.3f lbf',Ds)"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 2.7: Temperature_a_exit.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc\n",
+"//initialisation of variables\n",
+"clear\n",
+"To1= 540 //R\n",
+"po3= 12.6 //lbf/in^2\n",
+"l3= 3 //ft\n",
+"po1= 14.7 //lbf/in^2\n",
+"l1= 1 //ft\n",
+"vo1= 500 //ft/sec\n",
+"r= 0.83\n",
+"P1= 1 //lbf/in^2\n",
+"//CALCULATIONS\n",
+"To3= To1*(po3*l3/(po1*l1))^r\n",
+"Vo3= vo1*sqrt(To3/To1)\n",
+"P3= P1*po3*l3/(po1*l1)\n",
+"//RESULTS\n",
+"printf ('To3 = %.f R',To3)\n",
+"printf ('\n Vo3 = %.f ft/sec',Vo3)\n",
+"printf ('\n P3 = %.2f lbf/ft',P3)"
+   ]
+   }
+],
+"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
+}