Error: fpValueCheck:

[Aldo Moschetti]

Hi,

I'm new at using cantera-matlab and I' am trying to define a fuel mixture in my "set" function through mass fractions, but it doesn't accept those variables:

Tt_i = 700;

Pt_i = 1930000;

f = 0.0141;

f_st = 0.0683;

phi_c = f/f_st;

yo2 = 1/(4.76*(1+f));

yf = f/(1+f);

yn2 = (1/(1+f))/(1+(1/3.76));

c5_gas = Solution('Z79_C5.yaml');

set(c5_gas, 'T', Tt_i, 'P', Pt_i, 'Y', 'O2: yo2 POSF12345: yf N2: yn2');

equilibrate(c5_gas, 'UV');

c5_gas()

It returns the error:

CanteraError thrown by fpValueCheck:
Trouble processing string 'yo2'

Do you know why? Because I'm trying to learn all by myself, but I'm having hard times because I'm a fkn noob.

Thank you for your precious time.

Aldo

[francesco_sm64]

Dear Aldo,

if you are using the current version of Cantera, maybe you can try to have a look at the following example:

https://cantera.org/stable/examples/matlab_experimental/equil.html

It should show you how to fix your code.
I suppose the error comes from mixing numbers (yo2) within the string 'O2:yo2 ...'

All the best,
Francesco

[Aldo Moschetti]

Hi Francesco,

thank you so much, it was very usefull.