Venting and Fabric Porosity Activation

When there is no sensor to activate the gas injection, the vent holes and porosity become active when $T > T_{s t a r t}$ , or if the pressure $P > Δ P_{d e f}$ value longer than the time given in $Δ t P_{d e f}$ , where all these values are input using /MONVOL/FVMBAG1.

When at least one of the injectors is activated by the sensor, then activation of venting and porosity options is controlled by I_ttf.

T_inj is the time of the first injector to be activated by the sensor.

I_ttf = 0

	Venting, Porosity
Activation	When $P > Δ P_{d e f}$ longer than the time $Δ t P_{d e f}$ , or $T > T_{s t a r t}$
Deactivation	`T`_stop
Time dependent functions	No shift

I_ttf = 3

	Venting, Porosity
Activation	When $T > T_{i n j}$ and $P > Δ P_{d e f}$ longer than the time $Δ t P_{d e f}$ , or $T > T_{i n j} + T_{s t a r t}$
Deactivation	$T_{i n j} + T_{s t o p}$
Time dependent functions	Shifted by $T_{i n j} + T_{s t a r t}$

All other related curves are active when corresponding venting, porosity or communication option is active.