Unit systems in CFDEM-Coupling

Hi Josef,

got it, thanks for the reply.
Similar to the ERGUN tutorial, we created micro unit system. Comparing SI, CGS and micro unit system showed the same results.

Best regards
Henrik

Hi Achuth,

sorry for the late reply. Find the Settings for the controlDict attached. They are included in the same way as in ergunCGS tutorial.
It would be nice if you can crosscheck the values.

microCoeffs
{
universal
{
c c [ 0 1 -1 0 0 0 0 ] 2.99792e+8; // speed of light in vacuum (µm/µs)
G G [ -1 3 -2 0 0 0 0 ] 6.67429e-20; // gravitational constant (µm^3/(pgµs^2))
h h [ 1 2 -1 0 0 0 0 ] 6.62607e-13; // Planck's constant (pgµm^2/µs)
}
electromagnetic
{
e e [ 0 0 1 0 0 1 0 ] 4.803204e-4; // elementary charge (pC)
}
atomic
{
me me [ 1 0 0 0 0 0 0 ] 9.10938e-16; // electron mass (pg)
mp mp [ 1 0 0 0 0 0 0 ] 1.67262e-12; // proton mass (pg)
}
physicoChemical
{
mu mu [ 1 0 0 0 0 0 0 ] 1.66054e-12; // atomic mass unit (pg)
k k [ 1 2 -2 -1 0 0 0 ] 1.38065e-8; // Boltzman constant (pgµm^2/µs^2K)
}
standard
{
//- Standard pressure [pg/µmµs^2 ]
Pstd Pstd [ 1 -1 -2 0 0 0 0 ] 1e2; // 1 pg/µmµs^2
//- Standard temperature [degK]
Tstd Tstd [ 0 0 0 1 0 0 0 ] 298.15; // should be same as in SI unit system
}
}

Best regards,
Henrik