WOLFRAM SYSTEM MODELER
massFlowRate_dpReturn mass flow rate m_flow as function of pressure loss dp, i.e., m_flow = f(dp), due to wall friction |
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Wolfram Language
In[1]:=
SystemModel["Modelica.Fluid.Pipes.BaseClasses.WallFriction.LaminarAndQuadraticTurbulent.massFlowRate_dp"]
Out[1]:=
Syntax
m_flow = massFlowRate_dp(dp, rho_a, rho_b, mu_a, mu_b, length, diameter, crossArea, roughness, dp_small, Re_turbulent)
Inputs (11)
| dp |
Type: Pressure (Pa) Description: Pressure loss (dp = port_a.p - port_b.p) |
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| rho_a |
Type: Density (kg/m³) Description: Density at port_a |
| rho_b |
Type: Density (kg/m³) Description: Density at port_b |
| mu_a |
Type: DynamicViscosity (Pa⋅s) Description: Dynamic viscosity at port_a (dummy if use_mu = false) |
| mu_b |
Type: DynamicViscosity (Pa⋅s) Description: Dynamic viscosity at port_b (dummy if use_mu = false) |
| length |
Type: Length (m) Description: Length of pipe |
| diameter |
Type: Diameter (m) Description: Inner (hydraulic) diameter of pipe |
| crossArea |
Default Value: pi * diameter ^ 2 / 4 Type: Area (m²) Description: Inner cross section area |
| roughness |
Default Value: 2.5e-5 Type: Roughness (m) Description: Absolute roughness of pipe, with a default for a smooth steel pipe (dummy if use_roughness = false) |
| dp_small |
Default Value: 1 Type: AbsolutePressure (Pa) Description: Regularization of zero flow if |dp| < dp_small (dummy if use_dp_small = false) |
| Re_turbulent |
Default Value: 4000 Type: ReynoldsNumber Description: Turbulent flow if Re >= Re_turbulent (dummy if use_Re_turbulent = false) |
Outputs (1)
| m_flow |
Type: MassFlowRate (kg/s) Description: Mass flow rate from port_a to port_b |
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