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Thermophysicalproperties dict entries

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Old   July 21, 2008, 03:06
Default Hello I am trying to figur
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srinath
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Hello

I am trying to figure out the entries in thermophysicalproperties

If i look at rhoCentralFoam/forwardStep/constant/thermophysicalproperties
I find
mixture normalisedGas 1 11640.3 2.5 0.0 0.0 1.0;
11640.3gm/mol, seems to be molecular wt of the gas
If i assume universal gas constant =8.314, and gamma = 1.4.
I can get Cp to be 2.5.
and specific gas constant to be .71424
This is consistent with a speed of sound = 1
And all seems well

If i look in rhoCentralFoam/shockTube/thermophysicalproperties i find the line

mixture air 1 28.96 1004.5 2.544e+06 0.0 1.0;

Now, 28.96gm/mol is mol. wt of air
1004.5 = Cp of air, assuming gamma =1.4
But what is 2.544e+06?

Could someone please shed some light on this?

Thanks
Srinath
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Old   July 2, 2010, 23:57
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Dinesh Nath
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It is dynamic viscosity mu in MKS (kg/m-s)

dinesh
IIT Kanpur
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Old   December 9, 2010, 07:46
Default Density
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Dang Truon
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By the way, I would like to know is there density parameter in thermophysicalProperties dictionary? Where is it?
Thanks
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Old   December 9, 2010, 09:18
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Dinesh Nath
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Quote:
Originally Posted by dangtruon View Post
By the way, I would like to know is there density parameter in thermophysicalProperties dictionary? Where is it?
Thanks
hi,

in thermophyiscal Properties dictionary, I do not think there is any density peremeter. Only number of moles is there (red one below).

mixture air 1 28.9 1000 0 1.8e-05 0.7;

see the user guide U-177,
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Old   December 14, 2010, 01:21
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Dang Truon
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Thank dinesh2n

Last edited by dangtruon; December 14, 2010 at 03:05.
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Old   February 21, 2011, 11:07
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Fatih
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i know, the answer comes late, but i think it is the enthalpy in J/kg.
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Old   June 4, 2014, 10:05
Default time (dt)
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chariton christou
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hi,

Do you know where does the dt and end time came from in these cases?

thanks
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Old   October 28, 2014, 02:41
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Sachin
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Has anyone tried the propeller tutorial in openFoam??
If yes let me know how to go about it.
My allrun file is not working. So iam trying to run it manually.
Can anyone help me out with the steps???

Thanks in advance.
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