AbruptAdaptorPressure drop in pipe due to suddenly expanding or reducing area (for both flow directions) |
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Parameters (16)
| dp_start |
Value: dp_nominal Type: AbsolutePressure (Pa) Description: Guess value of dp = port_a.p - port_b.p |
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| m_flow_small |
Value: if system.use_eps_Re then system.eps_m_flow * m_flow_nominal else system.m_flow_small Type: MassFlowRate (kg/s) Description: Small mass flow rate for regularization of zero flow |
| show_T |
Value: true Type: Boolean Description: = true, if temperatures at port_a and port_b are computed |
| show_V_flow |
Value: true Type: Boolean Description: = true, if volume flow rate at inflowing port is computed |
| allowFlowReversal |
Value: system.allowFlowReversal Type: Boolean Description: = true to allow flow reversal, false restricts to design direction (m_flow >= 0) |
| momentumDynamics |
Value: Types.Dynamics.SteadyState Type: Dynamics Description: Formulation of momentum balance |
| m_flow_start |
Value: system.m_flow_start Type: MassFlowRate (kg/s) Description: Start value of mass flow rates |
| data |
Value: BaseClasses.QuadraticTurbulent.LossFactorData.suddenExpansion(diameter_a, diameter_b) Type: LossFactorData Description: Loss factor data |
| m_flow_nominal |
Value: if system.use_eps_Re then system.m_flow_nominal else 1e2 * system.m_flow_small Type: MassFlowRate (kg/s) Description: Nominal mass flow rate |
| use_Re |
Value: false Type: Boolean Description: = true, if turbulent region is defined by Re, otherwise by m_flow_small |
| from_dp |
Value: false Type: Boolean Description: = true, use m_flow = f(dp) else dp = f(m_flow) |
| show_Re |
Value: false Type: Boolean Description: = true, if Reynolds number is included for plotting |
| show_totalPressures |
Value: false Type: Boolean Description: = true, if total pressures are included for plotting |
| show_portVelocities |
Value: false Type: Boolean Description: = true, if port velocities are included for plotting |
| diameter_a |
Value: Type: Diameter (m) Description: Inner diameter of pipe at port_a |
| diameter_b |
Value: Type: Diameter (m) Description: Inner diameter of pipe at port_b |
Inputs (1)
| pathLength |
Default Value: 0 Type: Length (m) Description: Length flow path |
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Connectors (2)
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port_a |
Type: FluidPort_a Description: Fluid connector a (positive design flow direction is from port_a to port_b) |
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port_b |
Type: FluidPort_b Description: Fluid connector b (positive design flow direction is from port_a to port_b) |
Components (7)
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state_a |
Type: ThermodynamicState Description: state for medium inflowing through port_a |
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state_b |
Type: ThermodynamicState Description: state for medium inflowing through port_b |
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system |
Type: System Description: System properties |
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data |
Type: LossFactorData Description: Loss factor data |
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state_nominal |
Type: ThermodynamicState Description: Medium state to compute nominal pressure drop |
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state_b_des |
Type: ThermodynamicState Description: Thermodynamic state at port b for flow a -> b |
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state_a_nondes |
Type: ThermodynamicState Description: Thermodynamic state at port a for flow a <- b |
Used in Examples (1)
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Modelica.Fluid.Examples.Explanatory Illustrating a case in which kinetic terms play a major role in the momentum balance |