/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_ID1 | var_ID2 | var_ID3 | var_ID4 | var_ID5 | var_ID6 | var_ID7 | var_ID8 | var_ID9 | var_ID10 |
| Obj_ID1 | Obj_ID2 | Obj_ID3 | Obj_ID4 | Obj_ID5 | Obj_ID6 | Obj_ID7 | Obj_ID8 | Obj_ID9 | Obj_ID10 |
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_ID1, ...n | Variables saved for
TH (see table below) (Character, maximum 8 characters) |
|
| Obj_ID1, ...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
(1) cp=[∑im(i)cpi(T)][∑im(i)],cv=[∑im(i)cvi(T)][∑im(i)],γ=[∑im(i)cpi(T)]/[∑im(i)][∑im(i)cvi(T)]/[∑im(i)]=cpcvWhere,- m(i)
- Mass of the ith gas in the airbag at a given time.
- cpi(T)
- Heat capacity at constant pressure per mass unit of ith gas at actual airbag temperature.
- cvi(T)
- Heat capacity at constant volume per mass unit of ith 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.