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PartMC
2.4.0
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Read an aero_weight from a spec file.
| [in,out] | file | Spec file. |
| [in,out] | aero_weight | Aerosol weight. |
For efficiency the aerosol population can be weighted so that the true number distribution
is given by
where
is a fixed weighting function,
is the computational (simulated) number distribution, and
is the diameter. Thus a large value of
means that relatively few computational particles are used at diameter
, while a small value of
means that relatively many computational particles will be used at that diameter.
The aerosol weighting function is specified by the parameters:
); "power" for a power-law weighting (
), or "mfa" for the mass flow algorithm weighting (
with dependent coagulation particle removal)weight is power then the next parameter is:
in the power law relationship — setting the exponent to 0 is equivalent to no weighting, while setting the exponent negative uses more computational particles at larger diameters and setting the exponent positive uses more computational particles at smaller diameters; in practice exponents between 0 and -3 are most usefulSee also: