Hey guys I have a code in which a function is contained within a for loop. I'm trying to plot the output values against the number of times my for loop runs. When I try to plot my graphs I get them, however, there's no actual plots on the graph. All I get is an empty graph however the x and y coordinates are ranged correctly. Anyone have any idea how I can make the values appear on the graphs? I've also going into the graphs Property Editor and tried assign values there as well but to no avail. When I tried to plot something simple I was about to get a line on my graph so not too sure what's wrong. Thanks in advance!
for r = 10:1:20 [massratio,nth] = DesignProj(r)end%massratio versus r
figure(1)plot(r,massratio)xlabel('Pressure Ratio')ylabel('Mass Ratio')title('Mass ratio versus Pressure Ratio')%nth versus mass
figure(2)plot(nth,massratio)xlabel('Thermal Efficency')ylabel('Mass Ratio')title('Thermal Efficency versus Pressure Ratios')
The Function is as follows
function [ massratio, nth ] = DesignProj( r )T8 = 300; % K
h8 = 300.19; % kj/kg
Pr8 = 1.386;nC = 0.82;T10 = 1100; % Kh10 = 1161.07;Pr10 = 167.1;nT = 0.86;T12 = 420;h12 = 421.26;h1 = 191.81;v1 = 0.00101; % m^3/kg
P2 = 800;P1 = 10;h3 = 720.87;v3 = 0.001115;P4 = 5000;P3 = 800;P5 = 5000; % kpa
T5 = 350; % C
h5 = 3069.3;s5 = 6.4516;P6 = 800;s6s = 6.4516;s6f = 2.0457;s6fg = 4.6160;h6f = 720.87;h6fg = 2047.5;P7 = 10;s7 = 6.4516;s7f = 0.6492;s7fg = 7.4996;h7f = 191.81;h7fg = 2392.1;wdotnet = 280000; % kw or kj/s
% Interpolation Values
y1 = 15.31;y2 = 14.38;x1 = 596.52;x2 = 586.04;Pr9 = r*Pr8;h9s = x2 + ((x1-x2).*(Pr9-y2))/(y1-y2);h9 = h8 + ((h9s-h8)/nC);Pr11 = (1/r).*Pr10;h11s = x2 + ((x1-x2).*(Pr11-y2))/(y1-y2);h11 = h10 - nT.*(h10-h11s);w1in = v1.*(P2-P1);h2 = h1 + w1in;w2in = v3.*(P4-P3);h4 = h3 + w2in;x6s = (s6s-s6f)/s6fg;h6s = h6f+x6s.*h6fg;h6 = h5-nT.*(h5-h6s);x7s = (s7-s7f)/s7fg;h7s = h7f+x7s.*h7fg;h7 = h5-nT.*(h5-h7s);massratio = (h5-h4)/(h11-h12);y = (h3-h2)/(h6-h2);wT = nT.*(h5-h6+(1-y).*(h6-h7));wNS = wT-(1-y).*w1in-w2in;wNG = (h10-h11)-(h9-h8);wN = wNG+(1/massratio).*wNS;mA = wdotnet/wN;qdotin = mA.*(h10-h9);nth = wdotnet/qdotin;end
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