initial commit / add all books

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+//Example 5.7

+clc;

+clear;

+close;

+format('v',8);

+//Given data :

+Z1=0;//meter

+Z2=5;//meter

+Q=300*10^-3;//m/s

+D1=0.3;//meter

+D2=0.6;//meter

+A1=%pi*D1^2/4;//m^2

+A2=%pi*D2^2/4;//m^2

+v1=Q/A1;//m/s

+v2=Q/A2;//m/s

+p1=100;//kN/m^2

+p2=600;//kN/m^2

+g=9.81;//constant

+Vhead11=v1^2/2/g;//meter

+Vhead22=v2^2/2/g;//meter

+Phead11=p1/g;//meter

+Phead22=p2/g;//meter

+E1_11=Z1+Vhead11+Phead11;//meter

+E2_22=Z2+Vhead22+Phead22;//meter

+if E1_11>E2_22 then

+    disp("Energy at section 1-1("+string(E1_11)+" meter) is greater than energy at section 2-2("+string(E2_22)+" meter). Flow of water is from section 1-1 to 2-2.");

+    HeadLoss=E1_11-E2_22;//meter

+    disp(HeadLoss,"Head Loss in meter : ");

+else

+        disp("Energy at section 2-2("+string(E2_22)+" meter) is greater than energy at section 1-1("+string(E1_11)+" meter). Flow of water is from section 2-2 to 1-1.");  

+            HeadLoss=E2_22-E1_11;//meter

+        disp(HeadLoss,"Head Loss in meter : ");

+end

+