SinglePortLeft
SinglePortBottom
TwoPort
SimpleFriction
Base classes of FluidHeatFlow models
This package contains partial models based on interface models and physical equations.
Extends from Modelica.Icons.BasesPackage (Icon for packages containing base classes).
| Name | Description |
|---|---|
| SinglePortLeft
|
Partial model of a single port at the left |
| SinglePortBottom
|
Partial model of a single port at the bottom |
| TwoPort
|
Partial model of two port |
| SimpleFriction
|
Simple friction model |
Modelica.Thermal.FluidHeatFlow.BaseClasses.SinglePortLeftPartial model of a single port at the left
Partial model of single port at the left, defining the medium and the temperature at the port.
| Name | Description |
|---|---|
| medium | Medium |
| T0 | Initial temperature of medium [K] |
| T0fixed | Initial temperature guess value or fixed |
| Name | Description |
|---|---|
| flowPort |
Modelica.Thermal.FluidHeatFlow.BaseClasses.SinglePortBottomPartial model of a single port at the bottom
Partial model of single port at the bottom, defining the medium and the temperature at the port.
| Name | Description |
|---|---|
| medium | Medium |
| T0 | Initial temperature of medium [K] |
| T0fixed | Initial temperature guess value or fixed |
| Name | Description |
|---|---|
| flowPort |
Modelica.Thermal.FluidHeatFlow.BaseClasses.TwoPortPartial model of two port
Partial model with two flowPorts.
Possible heat exchange with the ambient is defined by Q_flow; setting this = 0 means no energy exchange.
Setting parameter m (mass of medium within pipe) to zero leads to neglect of temperature transient cv*m*der(T).
Mixing rule is applied.
Parameter 0 < tapT < 1 defines temperature of heatPort between medium's inlet and outlet temperature.
| Name | Description |
|---|---|
| medium | Medium in the component |
| m | Mass of medium [kg] |
| T0 | Initial temperature of medium [K] |
| T0fixed | Initial temperature guess value or fixed |
| tapT | Defines temperature of heatPort between inlet and outlet temperature |
| Name | Description |
|---|---|
| flowPort_a | |
| flowPort_b |
Simple friction model
Definition of relationship between pressure drop and volume flow rate:
Linear and quadratic dependency are coupled smoothly at V_flowLaminar / dpLaminar. Quadratic dependency is defined by nominal volume flow and pressure drop (V_flowNominal / dpNominal). See also sketch at diagram layer.
| Name | Description |
|---|---|
| Simple friction | |
| V_flowLaminar | Laminar volume flow [m3/s] |
| dpLaminar | Laminar pressure drop [Pa] |
| V_flowNominal | Nominal volume flow [m3/s] |
| dpNominal | Nominal pressure drop [Pa] |
| frictionLoss | Part of friction losses fed to medium |