Name | Description |
---|---|
use_mu=true | = true, if mu_a/mu_b are used in function, otherwise value is not used |
use_roughness=true | = true, if roughness is used in function, otherwise value is not used |
use_dp_small=true | = true, if dp_small is used in function, otherwise value is not used |
use_m_flow_small=true | = true, if m_flow_small is used in function, otherwise value is not used |
dp_is_zero=false | = true, if no wall friction is present, i.e., dp = 0 (function massFlowRate_dp() cannot be used) |
massFlowRate_dp | Return mass flow rate m_flow as function of pressure loss dp, i.e., m_flow = f(dp), due to wall friction |
massFlowRate_dp_staticHead | Return mass flow rate m_flow as function of pressure loss dp, i.e., m_flow = f(dp), due to wall friction and static head |
pressureLoss_m_flow | Return pressure loss dp as function of mass flow rate m_flow, i.e., dp = f(m_flow), due to wall friction |
pressureLoss_m_flow_staticHead | Return pressure loss dp as function of mass flow rate m_flow, i.e., dp = f(m_flow), due to wall friction and static head |
constant Boolean use_mu = true "= true, if mu_a/mu_b are used in function, otherwise value is not used";
constant Boolean use_roughness = true "= true, if roughness is used in function, otherwise value is not used";
constant Boolean use_dp_small = true "= true, if dp_small is used in function, otherwise value is not used";
constant Boolean use_m_flow_small = true "= true, if m_flow_small is used in function, otherwise value is not used";
constant Boolean dp_is_zero = false "= true, if no wall friction is present, i.e., dp = 0 (function massFlowRate_dp() cannot be used)";
Extends from Modelica.Icons.Function (Icon for a function).
Type | Name | Default | Description |
---|---|---|---|
Pressure | dp | Pressure loss (dp = port_a.p - port_b.p) [Pa] | |
Density | rho_a | Density at port_a [kg/m3] | |
Density | rho_b | Density at port_b [kg/m3] | |
DynamicViscosity | mu_a | Dynamic viscosity at port_a (dummy if use_mu = false) [Pa.s] | |
DynamicViscosity | mu_b | Dynamic viscosity at port_b (dummy if use_mu = false) [Pa.s] | |
Length | length | Length of pipe [m] | |
Diameter | diameter | Inner (hydraulic) diameter of pipe [m] | |
Length | roughness | 2.5e-5 | Absolute roughness of pipe, with a default for a smooth steel pipe (dummy if use_roughness = false) [m] |
AbsolutePressure | dp_small | 1 | Turbulent flow if |dp| >= dp_small (dummy if use_dp_small = false) [Pa] |
Type | Name | Description |
---|---|---|
MassFlowRate | m_flow | Mass flow rate from port_a to port_b [kg/s] |
replaceable partial function massFlowRate_dp "Return mass flow rate m_flow as function of pressure loss dp, i.e., m_flow = f(dp), due to wall friction" extends Modelica.Icons.Function; input SI.Pressure dp "Pressure loss (dp = port_a.p - port_b.p)"; input SI.Density rho_a "Density at port_a"; input SI.Density rho_b "Density at port_b"; input SI.DynamicViscosity mu_a "Dynamic viscosity at port_a (dummy if use_mu = false)"; input SI.DynamicViscosity mu_b "Dynamic viscosity at port_b (dummy if use_mu = false)"; input SI.Length length "Length of pipe"; input SI.Diameter diameter "Inner (hydraulic) diameter of pipe"; input SI.Length roughness(min=0) = 2.5e-5 "Absolute roughness of pipe, with a default for a smooth steel pipe (dummy if use_roughness = false)"; input SI.AbsolutePressure dp_small = 1 "Turbulent flow if |dp| >= dp_small (dummy if use_dp_small = false)"; output SI.MassFlowRate m_flow "Mass flow rate from port_a to port_b";end massFlowRate_dp;
Extends from Modelica.Icons.Function (Icon for a function).
Type | Name | Default | Description |
---|---|---|---|
Pressure | dp | Pressure loss (dp = port_a.p - port_b.p) [Pa] | |
Density | rho_a | Density at port_a [kg/m3] | |
Density | rho_b | Density at port_b [kg/m3] | |
DynamicViscosity | mu_a | Dynamic viscosity at port_a (dummy if use_mu = false) [Pa.s] | |
DynamicViscosity | mu_b | Dynamic viscosity at port_b (dummy if use_mu = false) [Pa.s] | |
Length | length | Length of pipe [m] | |
Diameter | diameter | Inner (hydraulic) diameter of pipe [m] | |
Real | g_times_height_ab | Gravity times (Height(port_b) - Height(port_a)) | |
Length | roughness | 2.5e-5 | Absolute roughness of pipe, with a default for a smooth steel pipe (dummy if use_roughness = false) [m] |
AbsolutePressure | dp_small | 1 | Turbulent flow if |dp| >= dp_small (dummy if use_dp_small = false) [Pa] |
Type | Name | Description |
---|---|---|
MassFlowRate | m_flow | Mass flow rate from port_a to port_b [kg/s] |
replaceable partial function massFlowRate_dp_staticHead "Return mass flow rate m_flow as function of pressure loss dp, i.e., m_flow = f(dp), due to wall friction and static head" extends Modelica.Icons.Function; input SI.Pressure dp "Pressure loss (dp = port_a.p - port_b.p)"; input SI.Density rho_a "Density at port_a"; input SI.Density rho_b "Density at port_b"; input SI.DynamicViscosity mu_a "Dynamic viscosity at port_a (dummy if use_mu = false)"; input SI.DynamicViscosity mu_b "Dynamic viscosity at port_b (dummy if use_mu = false)"; input SI.Length length "Length of pipe"; input SI.Diameter diameter "Inner (hydraulic) diameter of pipe"; input Real g_times_height_ab "Gravity times (Height(port_b) - Height(port_a))"; input SI.Length roughness(min=0) = 2.5e-5 "Absolute roughness of pipe, with a default for a smooth steel pipe (dummy if use_roughness = false)"; input SI.AbsolutePressure dp_small=1 "Turbulent flow if |dp| >= dp_small (dummy if use_dp_small = false)"; output SI.MassFlowRate m_flow "Mass flow rate from port_a to port_b";end massFlowRate_dp_staticHead;
Extends from Modelica.Icons.Function (Icon for a function).
Type | Name | Default | Description |
---|---|---|---|
MassFlowRate | m_flow | Mass flow rate from port_a to port_b [kg/s] | |
Density | rho_a | Density at port_a [kg/m3] | |
Density | rho_b | Density at port_b [kg/m3] | |
DynamicViscosity | mu_a | Dynamic viscosity at port_a (dummy if use_mu = false) [Pa.s] | |
DynamicViscosity | mu_b | Dynamic viscosity at port_b (dummy if use_mu = false) [Pa.s] | |
Length | length | Length of pipe [m] | |
Diameter | diameter | Inner (hydraulic) diameter of pipe [m] | |
Length | roughness | 2.5e-5 | Absolute roughness of pipe, with a default for a smooth steel pipe (dummy if use_roughness = false) [m] |
MassFlowRate | m_flow_small | 0.01 | Turbulent flow if |m_flow| >= m_flow_small (dummy if use_m_flow_small = false) [kg/s] |
Type | Name | Description |
---|---|---|
Pressure | dp | Pressure loss (dp = port_a.p - port_b.p) [Pa] |
replaceable partial function pressureLoss_m_flow "Return pressure loss dp as function of mass flow rate m_flow, i.e., dp = f(m_flow), due to wall friction" extends Modelica.Icons.Function; input SI.MassFlowRate m_flow "Mass flow rate from port_a to port_b"; input SI.Density rho_a "Density at port_a"; input SI.Density rho_b "Density at port_b"; input SI.DynamicViscosity mu_a "Dynamic viscosity at port_a (dummy if use_mu = false)"; input SI.DynamicViscosity mu_b "Dynamic viscosity at port_b (dummy if use_mu = false)"; input SI.Length length "Length of pipe"; input SI.Diameter diameter "Inner (hydraulic) diameter of pipe"; input SI.Length roughness(min=0) = 2.5e-5 "Absolute roughness of pipe, with a default for a smooth steel pipe (dummy if use_roughness = false)"; input SI.MassFlowRate m_flow_small = 0.01 "Turbulent flow if |m_flow| >= m_flow_small (dummy if use_m_flow_small = false)"; output SI.Pressure dp "Pressure loss (dp = port_a.p - port_b.p)";end pressureLoss_m_flow;
Extends from Modelica.Icons.Function (Icon for a function).
Type | Name | Default | Description |
---|---|---|---|
MassFlowRate | m_flow | Mass flow rate from port_a to port_b [kg/s] | |
Density | rho_a | Density at port_a [kg/m3] | |
Density | rho_b | Density at port_b [kg/m3] | |
DynamicViscosity | mu_a | Dynamic viscosity at port_a (dummy if use_mu = false) [Pa.s] | |
DynamicViscosity | mu_b | Dynamic viscosity at port_b (dummy if use_mu = false) [Pa.s] | |
Length | length | Length of pipe [m] | |
Diameter | diameter | Inner (hydraulic) diameter of pipe [m] | |
Real | g_times_height_ab | Gravity times (Height(port_b) - Height(port_a)) | |
Length | roughness | 2.5e-5 | Absolute roughness of pipe, with a default for a smooth steel pipe (dummy if use_roughness = false) [m] |
MassFlowRate | m_flow_small | 0.01 | Turbulent flow if |m_flow| >= m_flow_small (dummy if use_m_flow_small = false) [kg/s] |
Type | Name | Description |
---|---|---|
Pressure | dp | Pressure loss (dp = port_a.p - port_b.p) [Pa] |
replaceable partial function pressureLoss_m_flow_staticHead "Return pressure loss dp as function of mass flow rate m_flow, i.e., dp = f(m_flow), due to wall friction and static head" extends Modelica.Icons.Function; input SI.MassFlowRate m_flow "Mass flow rate from port_a to port_b"; input SI.Density rho_a "Density at port_a"; input SI.Density rho_b "Density at port_b"; input SI.DynamicViscosity mu_a "Dynamic viscosity at port_a (dummy if use_mu = false)"; input SI.DynamicViscosity mu_b "Dynamic viscosity at port_b (dummy if use_mu = false)"; input SI.Length length "Length of pipe"; input SI.Diameter diameter "Inner (hydraulic) diameter of pipe"; input Real g_times_height_ab "Gravity times (Height(port_b) - Height(port_a))"; input SI.Length roughness(min=0) = 2.5e-5 "Absolute roughness of pipe, with a default for a smooth steel pipe (dummy if use_roughness = false)"; input SI.MassFlowRate m_flow_small = 0.01 "Turbulent flow if |m_flow| >= m_flow_small (dummy if use_m_flow_small = false)"; output SI.Pressure dp "Pressure loss (dp = port_a.p - port_b.p)";end pressureLoss_m_flow_staticHead;