#### PEJVAKNAMAKY

##### Newbie level 1

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