Using the Numel function on matlab. Generating Outputs for inputs.

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Abdullahi Geedi 2019-5-21

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https://ww2.mathworks.cn/matlabcentral/answers/463252-using-the-numel-function-on-matlab-generating-outputs-for-inputs

关闭： Sabin 2023-3-13

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I've a funtion that generates Vapour fraction (alphaV), fugacity coeffificents(fL,fV) and compositon in liquid(y) and vapour(x) phases.

The script i've below allows be to generate Vapour fractions and K-values with varying Pressure.

The problem is i also want the system to generate correspending x and y values.

The Script I would like improved, so it returns 5925 Xand Y values:

nComp = numel(z);
P = 29624530:-5000:409;
nP = numel(P);
alphaV = zeros(nP, 1);
k = zeros(nP, nComp);
for i = 1:numel(P)
    ki=(Pc/P(i).*exp(5.37.*(1+Omega).*(1-Tc/T)));
    [x,y,alphaV(i),fL,fV] = PTFLASH_VLE_PRVDW(Pc, Tc, Omega, kappa, eta, P(i), T, z, ki);
    k(i, :) = y./x;
end

The input i use:

Basically a gas-mxiture consisting of 9 components.

T=320;
Pc=[4.599E6 4.872E6 4.248E6 3.796E6 3.37E6 3.025E6 2.49E6 1.817E6 1.401E6]; 
Tc=[190.6 305.3 369.8 425.1 469.7 507.6 568.7 658.1 722];
Omega=[0.012 0.1 0.152 0.2 0.252 0.301 0.346 0.577 0.721];
z= [0.7 0.08 0.07 0.03 0.01 0.02 0.04 0.02 0.03];
kappa=zeros(9);
eta=zeros(9);