Why does this error read

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Nick Olibrice
Nick Olibrice 2022-7-21
回答： SAI SRUJAN 2022-7-21
Ran in:
close all
clear all
P1 = 101 %pressure in kpa
P1 = 101
T1 = 298%temperature in kelvin
T1 = 298
n = 1.4
n = 1.4000
Cp = 1.004
Cp = 1.0040
Cv = 0.717
Cv = 0.7170
R = 0.287 %gas constant in kJ/kg*k
R = 0.2870
v1 = R * T1/P1 %specific volume in m^3/kg
v1 = 0.8468
IsentConst1 = P1 * v1^n
IsentConst1 = 80.0219
P2 = 2828 %outlet compressor/inlet combuster pressure
P2 = 2828
T2 = ((P2 / P1)^((n-1)/n)) * (T1)
T2 = 772.1292
v2 = (R * T2) / P2
v2 = 0.0784
Wc = Cp * (T2 - T1)
Wc = 476.0257
P3 = P2
P3 = 2828
T3 = 2260
T3 = 2260
v3 = R * T3 / P3
v3 = 0.2294
IsentConst2 = P3 * v3^n
IsentConst2 = 359.9107
Wt = Wc
Wt = 476.0257
T4 = (Wt / Cp) + T3
T4 = 2.7341e+03
v4 = ((P3 * v3^n)/(R * T4)^(1/n-1))
v4 = 2.4169e+03
P4 = R * T4 /v4
P4 = 0.3247
IsentConst3 = P4 * v4^n
IsentConst3 = 1.7701e+04
u4 = Cv * T4
u4 = 1.9604e+03
h4 = u4 + P4 * v4
h4 = 2.7451e+03
P5 = P1
P5 = 101
v5 = (P4 *v4^n / P5)^(1/n)
v5 = 40.0524
T5 = P5 *v5 / R
T5 = 1.4095e+04
u5 = Cv * T5
u5 = 1.0106e+04
h5 = u5 + P5 * v5
h5 = 1.4151e+04
dh = (h5 - h4)*1000 %performance parameter
dh = 1.1406e+07
P = P1:0.001:P2;
v = v1:-0.001:v2;
plot(v,P,'r','lineWidth',1.5)
Error using plot
Vectors must be the same length.

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采纳的回答

SAI SRUJAN
SAI SRUJAN 2022-7-21
Hi Nick Olibrice,
From my understanding of your question,you are facing an error using plot.I hope the following documentation which has a similar use case may give you an insight of how to use the function plot,
https://www.mathworks.com/help/matlab/ref/plot.html#btzpm1x

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