/TH/MONVOL

Block Format Keyword Describes the time history for monitored volume.

Format


(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
/TH/MONVOL/`thgroup_ID`
`thgroup_name`
`var_ID`₁	`var_ID`₂	`var_ID`₃	`var_ID`₄	`var_ID`₅	`var_ID`₆	`var_ID`₇	`var_ID`₈	`var_ID`₉	`var_ID`₁₀
`Obj_ID`₁	`Obj_ID`₂	`Obj_ID`₃	`Obj_ID`₄	`Obj_ID`₅	`Obj_ID`₆	`Obj_ID`₇	`Obj_ID`₈	`Obj_ID`₉	`Obj_ID`₁₀

Definition


Field	Contents	SI Unit Example
`thgroup_ID`	`TH` group identifier (Integer, maximum 10 digits)
`thgroup_name`	`TH` group name (Character, maximum 100 characters)
`var_ID`₁, ...`n`	Variables saved for `TH` (see table below) (Character, maximum 8 characters)
`Obj_ID`₁, ...`n`	Identifiers of the objects to be saved (Integer)

TH Output Keyword & Variables


Keyword	Object Saved	Variables
`MONV`	Monitored volume Airbag	`MASS, VOL, P, A, T, AO, UO, AC, UC, CP, CV, GAMA, DTBAG, NFV, MASS-IN, ENTHA-IN, ENER-INT, WORK, UPCRIT` `AO1, BO1, UO1, MO1, HO1` `AO2, BO2, UO2, MO2, HO2` `AO3, BO3, UO3, MO3, HO3` `AO4, BO4, UO4, MO4, HO4` `AO5, BO5, UO5, MO5, HO5` `AO6, BO6, UO6, MO6, HO6` `AO7, BO7, UO7, MO7, HO7` `AO8, BO8, UO8, MO8, HO8` `AO9, BO9, UO9, MO9, HO9` `AO10, BO10, UO10, MO10, HO10`

Table of Available Variables - Part 2


Keyword	Variable Group	Saved TH Variables
`MONV`	`DEF`	`MASS`, `VOL`, `P`, `A`, `T`, `AO`, `UO`, `DTBAG`, `NFV` + output variables of existing vent holes and porous surfaces
	`GAS` `OUT1` `OUT2` `OUT3` `OUT4` `OUT5` `OUT6` `OUT7` `OUT8` `OUT9` `OUT10`	`CP, CV, GAMA` `AO1, BO1, UO1, MO1, HO1` `AO2, BO2, UO2, MO2, HO2` `AO3, BO3, UO3, MO3, HO3` `AO4, BO4, UO4, MO4, HO4` `AO5, BO5, UO5, MO5, HO5` `AO6, BO6, UO6, MO6, HO6` `AO7, BO7, UO7, MO7, HO7` `AO8, BO8, UO8, MO8, HO8` `AO9, BO9, UO9, MO9, HO9` `AO10, BO10, UO10, MO10, HO10`

Output for Monitored Volume

MASS: mass
VOL: volume
P: pressure
A: area
T: temperature
AO: vent area
UO: vent velocity
AC: communication surface area of a multi-chamber airbag
UC: gas velocity through the communication surface of a multi-chamber airbag
CP: average heat capacity at constant pressure per mass unit
CV: average heat capacity at constant volume per mass unit
GAMA: CP/CV
DTBAG: FVM stability time step
NFV: number of finite volumes
$c_{p} = \frac{[\sum_{i} m^{(i)} c_{p}^{i} (T)]}{[\sum_{i} m^{(i)}]}, c_{v} = \frac{[\sum_{i} m^{(i)} c_{v}^{i} (T)]}{[\sum_{i} m^{(i)}]}, γ = \frac{[\sum_{i} m^{(i)} c_{p}^{i} (T)] / [\sum_{i} m^{(i)}]}{[\sum_{i} m^{(i)} c_{v}^{i} (T)] / [\sum_{i} m^{(i)}]} = \frac{c_{p}}{c_{v}}$
Where,

$m^{(i)}$

Mass of the $i^{t h}$ gas in the airbag at a given time.

$c_{p}^{i} (T)$

Heat capacity at constant pressure per mass unit of $i^{t h}$ gas at actual airbag temperature.

$c_{v}^{i} (T)$

Heat capacity at constant volume per mass unit of $i^{t h}$ gas at actual airbag temperature.
MASS-IN: sum of injected mass.
ENTHA-IN: Internal energy.
WORK: FVM pressure force work.
UPCRIT: Pressure criterion for FVM to uniform pressure switch which is the ratio of standard deviation of the Finite Volume pressures to the average pressure.
AO1 (resp 2, 3, 4, 5, 6, 7, 8, 9, and 10): opened vent area for vent hole or porous surface n1 (resp 2, 3, 4, 5, 6, 7, 8, 9, and 10) on non-impacted surface
BO1 (resp 2, 3, 4, 5, 6, 7, 8, 9, and 10): opened vent area for vent hole or porous surface n1 (resp 2, 3, 4, 5, 6, 7, 8, 9, and 10) on impacted surface
UO1 (resp 2, 3, 4, 5, 6, 7, 8, 9, and 10): outgoing velocity at vent hole or porous surface n1 (resp 2, 3, 4, 5, 6, 7, 8, 9, and 10)
MO1 (resp 2, 3, 4, 5, 6, 7, 8, 9, and 10): outgoing mass at vent hole or porous surface n1 (resp 2, 3, 4, 5, 6, 7, 8, 9, and 10)
HO1 (resp 2, 3, 4, 5, 6, 7, 8, 9, and 10): outgoing enthalpy at vent hole or porous surface n1 (resp 2, 3, 4, 5, 6, 7, 8, 9, and 10)

Comments

Available names are listed in the two tables above.
In the first table, TH-variables are listed. If a TH-variable is requested, this variable is written.
In the second table, other variable groups are listed. If a variable group is requested, all the associated TH-variables are written at once.