How to use the sum of all the iterations of a value calculated in a for-loop to calculate another value within the same loop?
12 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
Hi, I am trying to calculate the species mass fractions (Wi) within a stream by dividing the species flow rate (Mi) by the overall mass flow rate (sum of all values of Mi). I have managed to calculate and save all the mass flow rates (mi), but I'm struggling with summing all those values to get the overall stream mass flow rate. Any help would be greatly appreciated.
for i = 1:50
Mi = M(i)*n(i); % species mass flow rate (g/h)
mi(i) = Mi;
Xi = n(i)/sum(n); % species mole fraction (no unit)
xi(i) = Xi;
Wi = Mi/sum(mi); % species mass fraction (no unit) - this is the denominator I'm struggling with
wi(i) = Wi;
end
4 comentarios
Dyuman Joshi
el 20 de Sept. de 2022
It's not a bit clear to me what you are trying to do, can you an example with a set of data?
Respuestas (1)
Dyuman Joshi
el 20 de Sept. de 2022
Editada: Dyuman Joshi
el 20 de Sept. de 2022
Is using a loop necessary?
If yes, then my comment above should work -
M = [2 3];
n = [8 9];
for i = 1:2
mi(i) = M(i)*n(i); % species mass flow rate (g/h)
end
mi
wi=mi/sum(mi)
If no, then you can do without loop as well
mi1=M.*n
wi1=mi1/sum(mi1)
Verification, with the code you provided
Mi_1 = M(1)*n(1);
Mi_2 = M(2)*n(2);
Mi = [Mi_1 Mi_2]
Mi_total = sum(Mi);
Wi_1 = Mi_1/Mi_total;
Wi_2 = Mi_2/Mi_total;
Wi = [Wi_1 Wi_2]
0 comentarios
Ver también
Categorías
Más información sobre Loops and Conditional Statements en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!