PerteDP

Block Screenshot

Contents

• Description
• Parameters
• Default properties
• Interfacing function
• Modelica model

Description

A PertDP block represents a hydraulic pipe with linear resistance losses. This component represents a hydraulic resistance and pressure loss is directly proportional to the flow rate. Conventionally, the flow direction is the positive when fluid flows from the black port to the white port. The pressure loss is obtained with :

The key parameters of this block are the pipes' length, the pipe's diameter, inlet and outlet altitudes, and some other thermal-hydraulic coefficients.

Parameters

• Longueur du tube : L (m)

  Length of pipe

  Properties : Type 'vec' of size -1.

• Diamètre interne du tube : D (m)

  Pipe diameter

  Properties : Type 'vec' of size -1.

• Coefficient de perte de charge-frottement(S.U) : lambda

  Coefficient of thermohydraluc resistance

  Properties : Type 'vec' of size -1.

• Altitude entrée tuyauterie : z1 (m)

  Altitude of the first port (z1)

  Properties : Type 'vec' of size -1.

• Altitude sortie tuyauterie : z2 (m)

  Altitude of the second port (z2)

  Properties : Type 'vec' of size -1.

• Si 0, masse volumique imposée fu fluide : p_rho (kg/m3)

  Fluid density

  Properties : Type 'vec' of size -1.

Default properties

• Inputs :

  • Modelica variable name : 'C1'

    Implicit variable.

• Outputs :

  • Modelica variable name : 'C2'

    Implicit variable.

• Parameters :

  • Modelica parameter name : 'L'

    Default value : 10

    Is a state variable : no.

  • Modelica parameter name : 'D'

    Default value : 0.2

    Is a state variable : no.

  • Modelica parameter name : 'lambda'

    Default value : 0.03

    Is a state variable : no.

  • Modelica parameter name : 'z1'

    Default value : 0

    Is a state variable : no.

  • Modelica parameter name : 'z2'

    Default value : 0

    Is a state variable : no.

  • Modelica parameter name : 'p_rho'

    Default value : 0

    Is a state variable : no.

• File name of the model : PerteDP

Interfacing function

• SCI/modules/scicos_blocks/macros/Hydraulics/PerteDP.sci

Modelica model

• SCI/modules/scicos_blocks/macros/Hydraulics/PerteDP.mo