[FLASH-USERS] Physical Constants in Flash3.3

[Min Long]

Hi Aaron,

The molar gas constant R is in units of J K^-1 mol^-1 (per mol), while the
*specific* gas constant R_s is in units of J K^-1 kg^-1 (*per unit mass*).
That is, R_s = R/M, where M is the molar mass of the gas.

For H1 gas, M=1g/mol=10^-3 kg/mol,

R_s=8.31*10^3 J K^-1 kg^-1.

Thanks,
Min



> Hi,
>
> When I set pc_unitsbase = "CGS", the ideal gas constant is 8.315e7.
> When I set pc_unitsbase = "MKS", the ideal gas constant is 8.315e3.
> Why is the MKS value 1000 times too large?
> What is the simplest way to compile the PhysicalConstants_unitTest as a
> stand-alone program?
>
> Thanks.