WOLFRAM SYSTEM MODELER
dp_fric_of_m_flowCalculate pressure drop due to friction as function of mass flow rate |
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Wolfram Language
In[1]:=
SystemModel["Modelica.Fluid.Pipes.BaseClasses.WallFriction.LaminarAndQuadraticTurbulent.Internal.dp_fric_of_m_flow"]
Out[1]:=
Syntax
(dp_fric, ddp_fric_dm_flow) = dp_fric_of_m_flow(m_flow, rho_a, rho_b, mu_a, mu_b, length, diameter, crossArea, Re1, Re2, Delta)
Inputs (11)
| m_flow |
Type: MassFlowRate (kg/s) Description: Mass flow rate from port_a to port_b |
|---|---|
| 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 |
Type: Area (m²) Description: Inner cross section area |
| Re1 |
Type: ReynoldsNumber Description: Boundary between laminar regime and transition |
| Re2 |
Type: ReynoldsNumber Description: Boundary between transition and turbulent regime |
| Delta |
Type: Real Description: Relative roughness |
Outputs (2)
| dp_fric |
Type: Pressure (Pa) Description: Pressure loss due to friction (dp_fric = port_a.p - port_b.p - dp_grav) |
|---|---|
| ddp_fric_dm_flow |
Type: Real Description: Derivative of pressure drop with mass flow rate |