How do I get density

bme79 · June 9, 2012, 20:49

Could some one please help me out.
I need to get a density in a cell. I am using rhoPimpleFoam and the code is

forAll(mesh.C(), celli)
{
scalar rro=rho[celli];
.....
}

I am getting an error. "error: invalid types ‘float[Foam::label {aka int}]’ for array subscript"

I spend two day tryng to understand why I can not get density.

Please help me out.

Chris Lucas · June 11, 2012, 09:48

Hi,

have a look at hPsiThermo.C

Kind Regards,
Christian

bme79 · June 11, 2012, 22:53

Thank you Christian for your reply, but it did not help me. I looked to this file and it did not tell me how to get density.

Could you please describe what I should check in this file.

Quote:

Originally Posted by Chris Lucas

Hi,
have a look at hPsiThermo.C
Kind Regards,
Christian

Chris Lucas · June 12, 2012, 02:54

Hi,

get the pressure and psi of the cell (as seen in class function calculate) and multiply them (have a look at hPsiThermo.H)

Best Regards,
Christian

bme79 · June 12, 2012, 18:55

One more question.

My rho[celli]=psi[celli]*p[celli]

I can get p[celli] but when I try to get psi[celli] I am getting error.

How can I get a p[celli] ???

Thank you one more time.

QUOTE=Chris Lucas;365934]Hi,

get the pressure and psi of the cell (as seen in class function calculate) and multiply them (have a look at hPsiThermo.H)

Best Regards,
Christian[/QUOTE]

bme79 · June 12, 2012, 19:49

One more question.

My rho[celli]=psi[celli]*p[celli]

I can get p[celli] but when I try to get psi[celli] I am getting error.

How can I get a p[celli] ???

Thank you one more time.

QUOTE=Chris Lucas;365934]Hi,

get the pressure and psi of the cell (as seen in class function calculate) and multiply them (have a look at hPsiThermo.H)

Best Regards,
Christian[/QUOTE]

June 9, 2012, 20:49	How do I get density	#1
bme79 New Member Maxim Join Date: May 2012 Posts: 5 Rep Power: 13	Could some one please help me out. I need to get a density in a cell. I am using rhoPimpleFoam and the code is forAll(mesh.C(), celli) { scalar rro=rho[celli]; ..... } I am getting an error. "error: invalid types ‘float[Foam::label {aka int}]’ for array subscript" I spend two day tryng to understand why I can not get density. Please help me out.

June 12, 2012, 18:55		#5
bme79 New Member Maxim Join Date: May 2012 Posts: 5 Rep Power: 13	One more question. My rho[celli]=psi[celli]p[celli] I can get p[celli] but when I try to get psi[celli] I am getting error. How can I get a p[celli] ??? Thank you one more time. QUOTE=Chris Lucas;365934]Hi, get the pressure and psi of the cell (as seen in class function calculate) and multiply them (have a look at hPsiThermo.H) Best Regards, Christian[/QUOTE] Last edited by bme79; June 12, 2012 at 19:49.*

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June 11, 2012, 09:48		#2
Chris Lucas Senior Member Christian Lucas Join Date: Aug 2009 Location: Braunschweig, Germany Posts: 202 Rep Power: 17	Hi, have a look at hPsiThermo.C Kind Regards, Christian

June 12, 2012, 02:54		#4
Chris Lucas Senior Member Christian Lucas Join Date: Aug 2009 Location: Braunschweig, Germany Posts: 202 Rep Power: 17	Hi, get the pressure and psi of the cell (as seen in class function calculate) and multiply them (have a look at hPsiThermo.H) Best Regards, Christian

June 12, 2012, 19:49		#6
bme79 New Member Maxim Join Date: May 2012 Posts: 5 Rep Power: 13	One more question. My rho[celli]=psi[celli]*p[celli] I can get p[celli] but when I try to get psi[celli] I am getting error. How can I get a p[celli] ??? Thank you one more time. QUOTE=Chris Lucas;365934]Hi, get the pressure and psi of the cell (as seen in class function calculate) and multiply them (have a look at hPsiThermo.H) Best Regards, Christian[/QUOTE]