Need help plotting one function against a variable without it using the mean value of the first variable?

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Killian 2014-3-16

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https://ww2.mathworks.cn/matlabcentral/answers/121767-need-help-plotting-one-function-against-a-variable-without-it-using-the-mean-value-of-the-first-vari

评论： Killian 2014-3-16

The following is my code so far. I'm trying to plot T against V, which is in the denominator of the equation for T as well as being in a square root in the numerator. When I run this code, it just plots T and v using v=7.5 and it just gives a striahgt line (T is only calculated for v=7.5). How do I get T to vary with v as it should?
    v=0:0.1:15;
    P=15*10^6;
    a=(0.027138*10^-9);mew=0.15;n=(2.2*10^11);L1=P/n;
    h=(mew*L1*v)/(pi*(a^2));rho=8000;C=500;Kd=16.3;Kp=300;
    Pc=(v*a*rho*C)/(2*Kd);
    T=(13.176*a*h)/(46.848*Kp+9*pi*Kd*sqrt(pi*(0.874+Pc)))
    plot(v,T)