Name: Luiz Fernando Tolentino VargasProblem 2a) Matlab Output:

c ) Matlab Plot:

Matlab Program:%Luiz Fernando Tolentino Vargas%Problem 2 - Homework 5 - Aerodynamics and Flight MechanicsAR=10;b= 8.5;alfa= 5*pi/180;teta=pi./8;

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for i=1:4 n=1; for j=1:4 C(i,j)= sin(teta.*n).*((2.*b.*sin(teta))./(pi.*(1-0.3.*cos(teta)))+n); n=n+2; end result(i)=sin(teta); teta=teta+pi./8;end %Coefficient MatrixC% Alfa factor (=sin(teta))result(:,1)%A MatrixA=inv(C)*result(:,1) factor=0;mult=3;for n=2:4 factor1=mult*(A(n)./A(1)).^(2); factor=factor+factor1; mult=mult+2;end%factor for calculate Span Efficiency Factorfactor %Span Efficiency FactorSpan=1./(1+factor) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%b)

Cl=A(1).*pi*alfa*ARCdi=Cl.^(2)*(1+factor)./(pi*AR) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%c)

Coeffl=[-0.5:0.0001:1];CD=0.01 + Coeffl.^(2)./(pi*Span*AR);plot(Coeffl,CD)