help me to write program matlab problem

[PEJVAKNAMAKY]

hello all;
plese help me to write in matlab follow if define ρ=air density;v=speed wind;
σ=rotor solidity; λ=tip speed ratio;ω=rotational speed;Cp=power coefficient;
Pw=.5*ρ*A*(v^3);
Cp=Pm/Pw;
A=π*(r^2);
λ=(ω*r)/v;
how can write progrom in matlab that draw Cp versuse λ;
and then write new program that draw maximumCp versuse σ;
please help to learn this my problem;
thanks alot

 

[Roshdy]

is Pm constant?
Where is the relation between Cp and σ?

 

[mohsenruz]

for fix value of all the parameters except v you may calculate Cp and λ for different value of v. for this purpose you can diffine v as a vector with your specific values. then calculate Cp and λ for those values of v. then just you need to use plot command.
about your second question I can not find any dependency between CP and σ.
so how you want to plot?