Extends from Modelica.Icons.RecordsPackage (Icon for package containing records).
| Name | Description |
|---|---|
 PressureLoss
|
Base record for fluid properties for pressure loss |
| FluidProperties
|
Base record for fluid properties |
| IdealGas_con
|
Base record for generic pressure loss function | ideal gas | mean density |
| IdealGas_var
|
Base record for generic pressure loss function | ideal gas | mean density |
| NominalDensityViscosity
|
Base record for generic pressure loss function |
| NominalPressureLossLawDensity_con
|
Base record for generic pressure loss function |
| NominalPressureLossLawDensity_var
|
Base record for generic pressure loss function |
| QuadraticVFLOW
|
Base record for generic pressure loss function | quadratic function (dp=a*Vdot^2 + b*Vdot) |
| TwoPhaseFlow_con
|
Base record for two phase Flow |
| TwoPhaseFlow_var
|
Base record for two phase flow |
| IdealGas
|
Base record for generic pressure loss function | ideal gas | mean density |
| NominalPressureLossLawDensity
|
Base record for generic pressure loss function |
| TwoPhaseFlow
|
base record for two phase Flow |
Modelica.Fluid.Dissipation.Utilities.Records.General.PressureLossBase record for fluid properties for pressure loss
Extends from Modelica.Icons.Record (Icon for records).
| Name | Description |
|---|---|
| Fluid properties | |
| eta | Dynamic viscosity of fluid [Pa.s] |
| rho | Density of fluid [kg/m3] |
Modelica.Fluid.Dissipation.Utilities.Records.General.FluidPropertiesBase record for fluid properties
Extends from Modelica.Icons.Record (Icon for records).
| Name | Description |
|---|---|
| Fluid properties | |
| cp | Specific heat capacity of fluid at constant pressure [J/(kg.K)] |
| eta | Dynamic viscosity of fluid [Pa.s] |
| lambda | Thermal conductivity of fluid [W/(m.K)] |
| rho | Density of fluid [kg/m3] |
Modelica.Fluid.Dissipation.Utilities.Records.General.IdealGas_conBase record for generic pressure loss function | ideal gas | mean density
Extends from Modelica.Icons.Record (Icon for records).
| Name | Description |
|---|---|
| Generic variables | |
| exp | Exponent of pressure loss law |
| Km | Coefficient for pressure loss law [(Pa)^2/{(kg/s)^exp*K}] |
| Fluid properties | |
| R_s | Specific gas constant of ideal gas [J/(kg.K)] |
Modelica.Fluid.Dissipation.Utilities.Records.General.IdealGas_varBase record for generic pressure loss function | ideal gas | mean density
Extends from Modelica.Icons.Record (Icon for records).
| Name | Description |
|---|---|
| Fluid properties | |
| rho_m | Mean density of ideal gas [kg/m3] |
| T_m | Mean temperature of ideal gas [K] |
| p_m | Mean pressure of ideal gas [Pa] |
Modelica.Fluid.Dissipation.Utilities.Records.General.NominalDensityViscosityBase record for generic pressure loss function
Extends from Modelica.Icons.Record (Icon for records).
| Name | Description |
|---|---|
| Generic variables | |
| dp_nom | Nominal pressure loss (at nominal values of mass flow rate and density) [Pa] |
| exp | Exponent of pressure loss law |
| m_flow_nom | Nominal mass flow rate (at nominal values of pressure loss and density) [kg/s] |
| rho_nom | Nominal density (at nominal values of mass flow rate and pressure loss) [kg/m3] |
| exp_eta | Exponent for dynamic viscosity dependence |
| eta_nom | Dynamic viscosity at nominal pressure loss [Pa.s] |
Modelica.Fluid.Dissipation.Utilities.Records.General.NominalPressureLossLawDensity_conBase record for generic pressure loss function
Extends from Modelica.Icons.Record (Icon for records).
| Name | Description |
|---|---|
| Generic variables | |
| target | MassFlowRate == use nominal mass flow rate | VolumeFlowRate == use nominal volume flow rate |
| A_cross | Cross sectional area [m2] |
| A_cross_nom | Nominal cross sectional area [m2] |
| dp_nom | Nominal pressure loss (at nominal values of mass flow rate and density) [Pa] |
| m_flow_nom | Nominal mass flow rate (at nominal values of pressure loss and density) [kg/s] |
| exp | Exponent of pressure loss law |
| V_flow_nom | Nominal volume flow rate (at nominal values of pressure loss and density) [m3/s] |
| rho_nom | Nominal density (at nominal values of mass flow rate and pressure loss) [kg/m3] |
| zeta_TOT_nom | Nominal pressure loss coefficient (for nominal values) [1] |
Modelica.Fluid.Dissipation.Utilities.Records.General.NominalPressureLossLawDensity_varBase record for generic pressure loss function
Extends from Modelica.Icons.Record (Icon for records).
| Name | Description |
|---|---|
| Generic variables | |
| zeta_TOT | Pressure loss coefficient [1] |
Modelica.Fluid.Dissipation.Utilities.Records.General.QuadraticVFLOWBase record for generic pressure loss function | quadratic function (dp=a*Vdot^2 + b*Vdot)
Extends from Modelica.Icons.Record (Icon for records).
| Name | Description |
|---|---|
| Generic variables | |
| a | Coefficient for quadratic term [(Pa.s2)/m6] |
| b | Coefficient for linear term [(Pa.s)/m3] |
Modelica.Fluid.Dissipation.Utilities.Records.General.TwoPhaseFlow_conBase record for two phase Flow
Extends from Modelica.Icons.Record (Icon for records).
| Name | Description |
|---|---|
| Geometry | |
| A_cross | Cross sectional area [m2] |
| perimeter | Wetted perimeter [m] |
| length | Length in fluid flow direction [m] |
Modelica.Fluid.Dissipation.Utilities.Records.General.TwoPhaseFlow_varBase record for two phase flow
Extends from Modelica.Icons.Record (Icon for records).
| Name | Description |
|---|---|
| Fluid properties | |
| rho_g | Density of gas [kg/m3] |
| rho_l | Density of liquid [kg/m3] |
| eta_g | Dynamic viscosity of gas [Pa.s] |
| eta_l | Dynamic viscosity of liquid [Pa.s] |
| sigma | Surface tension [N/m] |
| Input | |
| x_flow | Mean mass flow rate quality over length |
Modelica.Fluid.Dissipation.Utilities.Records.General.IdealGasBase record for generic pressure loss function | ideal gas | mean density
Extends from Modelica.Icons.Record (Icon for records).
| Name | Description |
|---|---|
| Generic variables | |
| exp | Exponent of pressure loss law |
| Km | Coefficient for pressure loss law [(Pa)^2/{(kg/s)^exp*K}] |
| Fluid properties | |
| R_s | Specific gas constant of ideal gas [J/(kg.K)] |
| rho_m | Mean density of ideal gas [kg/m3] |
| T_m | Mean temperature of ideal gas [K] |
| p_m | Mean pressure of ideal gas [Pa] |
Modelica.Fluid.Dissipation.Utilities.Records.General.NominalPressureLossLawDensityBase record for generic pressure loss function
Extends from Modelica.Icons.Record (Icon for records).
| Name | Description |
|---|---|
| Generic variables | |
| target | MassFlowRate == use nominal mass flow rate | VolumeFlowRate == use nominal volume flow rate |
| A_cross | Cross sectional area [m2] |
| A_cross_nom | Nominal cross sectional area [m2] |
| dp_nom | Nominal pressure loss (at nominal values of mass flow rate and density) [Pa] |
| m_flow_nom | Nominal mass flow rate (at nominal values of pressure loss and density) [kg/s] |
| exp | Exponent of pressure loss law |
| V_flow_nom | Nominal volume flow rate (at nominal values of pressure loss and density) [m3/s] |
| rho_nom | Nominal density (at nominal values of mass flow rate and pressure loss) [kg/m3] |
| zeta_TOT | Pressure loss coefficient [1] |
| zeta_TOT_nom | Nominal pressure loss coefficient (for nominal values) [1] |
Modelica.Fluid.Dissipation.Utilities.Records.General.TwoPhaseFlowbase record for two phase Flow
Extends from Modelica.Icons.Record (Icon for records).
| Name | Description |
|---|---|
| Fluid properties | |
| rho_l | Density of liquid [kg/m3] |
| rho_g | Density of gas [kg/m3] |
| eta_l | Dynamic viscosity of liquid [Pa.s] |
| eta_g | Dynamic viscosity of gas [Pa.s] |
| x | Vapour fraction [1] |
| sigma | Surface Tension [N/m] |
| others | |
| n | Exponent in Blasius equation (0.2-0.25) |