initial commit / add all books

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diff --git a/2090/CH10/EX10.4/Chapter10_example4.sce b/2090/CH10/EX10.4/Chapter10_example4.sce
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+clc

+clear

+//Input data

+s=20;//Spray penetration in cm

+t1=15.7;//The spray penetration of 20 cm in ms

+pi1=150;//The injection pressure in bar

+pi2=450;//The injection pressure to be used in bar

+p2=15;//The combustion chamber pressure in bar

+d1=0.34;//The diameter of the orifice in mm

+s1=20;//The penetration for an orifice in cm

+d2=0.17;//If the diameter of the orifice in cm

+t11=12;//The spray penetration in ms

+

+//Calculations

+t2=(t1*(pi1-p2)^(1/2))/(pi2-p2)^(1/2);//The time required for the spray to penetrate in ms

+s2=d2*(s1/d1);//The penetration of the orifice in cm

+t21=t11*(d2/d1);//The time required for the spray to penetrate in ms

+

+//Output

+printf('(a) The time required for the spray to penetrate = %3.2f ms \n (b) The spray penetration of the orifice = %3.0f cm \n The time required for the spray to penetrate = %3.0f ms ',t2,s2,t21)