Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal > Solving the model
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The following sections list the boundary conditions or other data and their corresponding values in the
Thermal Stream load data
The following table describes the data stored for each Thermal Stream load in the model.
| Data | Type | Description |
|---|---|---|
| Tin | Temperature | Displays the stream inlet fluid temperature. |
| Tout | Temperature | Displays the stream outlet fluid temperature. |
| TrelOut-A | Temperature | Displays the outlet relative temperature on side A. The relative temperature allows for the rotational effects due to the swirl velocity. |
| TrelOut-B | Temperature | Displays the outlet relative temperature on side B. The relative temperature allows for the rotational effects due to the swirl velocity. For one-sided stream types, this value is zero. |
| Pout | Pressure | Displays the stream outlet fluid pressure. |
| Mout | Mass flow | Displays the stream outlet mass flow. |
| Dir | Flow direction | Displays the flow direction. |
| THR-A | Heat rise | Displays the total heat rise on side A. |
| THR-B | Heat rise | Displays the total heat rise on side B. For one-sided stream types, this value is zero. |
| CHR-A | Heat rise | Displays the convective heat rise on side A. |
| CHR-B | Heat rise | Displays the convective heat rise on side B. For one-sided stream types, this value is zero. |
| AREAC | Area | Displays the total corrected convective area. |
| AREAC-A | Area | Displays the corrected convective area on side A. For one-sided stream types, this value is the same as for AREAC. |
| AREAC-B | Area | Displays the corrected convective area on side B. For one-sided stream types, this value is zero. |
| SVout-A | Swirl velocity | Displays the outlet swirl velocity on side A. |
| SVout-B | Swirl velocity | Displays the outlet swirl velocity on side B. For one-sided stream types, this value is zero. |
Thermal Convecting Zone load data
The following table describes the data stored for each Thermal Convecting Zone load in the model.
| Data | Type | Description |
|---|---|---|
| Tmax | Temperature | Displays the maximum temperature on the wall. |
| Trel-max | Temperature | Displays the maximum relative temperature on the wall. The relative temperature allows for the rotational effects due to the swirl velocity. |
| Pmax | Pressure | Displays the maximum pressure. |
| THR | Heat rise | Displays the total heat rise. |
| AREAC | Area | Displays the corrected convective area. |
| SVmax | Swirl velocity | Displays the maximum swirl velocity. |
Thermal Void load data
The following table describes the data stored for each Thermal Void load in the model.
| Data | Type | Description |
|---|---|---|
| Tmax | Temperature | Displays the maximum temperature on the wall. |
| Trel-max | Temperature | Displays the maximum relative temperature on the wall. The relative temperature allows for the rotational effects due to the swirl velocity. |
| Pmax | Pressure | Displays the maximum pressure on the wall. |
| THR | Heat rise | Displays the total heat rise. |
| CHR | Heat rise | Displays the convective heat rise. |
| AREAC | Area | Displays the corrected convective area. |
| SVmax | Swirl velocity | Displays the maximum swirl velocity. |
Immersed Duct simulation object data
The following table describes the data stored for each Immersed Duct simulation object in the model.
| Data | Type | Description |
|---|---|---|
| CHR | Heat rise | Displays the convective heat rise. |
| AREAC | Area | Displays the convective area. |
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Thermal Stream
Thermal Convecting Zone
Thermal Void
Immersed Ducts
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Simcenter 3D Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal boundary conditions
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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/xid1932356 · retrieved 2026-07-17