PartMC 2.1.0
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A gas profile input file must consist of three or more lines, consisting of:
time
and should be followed by rate
and should be followed by The units of the species lines depends on the type of gas profile:
The species names must be those specified by the Input File Format: Gas Material Data. Any species not listed are taken to be zero.
The scaling parameter is used to multiply all the gas state values at the corresponding time, giving a simple way of scaling the overall gas state.
Between the specified times the gas profile is interpolated step-wise and kept constant at its last value. That is, if the times are , the rates are
, and the gas states are
(all with
), then between times
and
the gas state is constant at
. Before time
the gas state is
, while after time
it is
.
Example: an emissions gas profile could be:
time 0 600 1800 # time (in s) after simulation start rate 1 0.5 1 # scaling factor H2SO4 0 0 0 # emission rate in mol/(m^2 s) SO2 4e-9 5.6e-9 5e-9 # emission rate in mol/(m^2 s)
Here there are no emissions of , while
starts out being emitted at
at the start of the simulation, before falling to a rate of
at 10 min (note the scaling of 0.5), and then rising again to
after 30 min. Between 0 min and 10 min the emissions are the same as at 0 min, while between 10 min and 30 min they are the same as at 10 min. After 30 min they are held constant at their final value.
See also: