Package Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss
Icon for package containing records

Information

This icon indicates a package that contains records

Extends from Modelica.Icons.RecordsPackage (Icon for package containing records).

Package Contents

Name	Description
`Bend`	Input for bend
`Diffuser`	Input for diffuser
`EdgedBend`	Input for bend
`Geometry`	Input for several geometries of internal flow
`Orifice`	Input for orifice
`PressureLossInput`	Input for pressure loss calculation
`StraightPipe`	Input for straight pipe
`SuddenChange`	Input for sudden change of diameter
`Tjunction`	Input for T-junction

Record Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss.Bend
Input for bend

Information

This icon is indicates a record.

Extends from Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss.EdgedBend (Input for bend).

Fields

Type	Name	Description
`Diameter`	`d_hyd`	Hydraulic diameter
`Angle`	`delta`	Angle of turning
`Length`	`K`	Roughness (absolute average height of surface asperities)
`Radius`	`R_0`	Curvature radius

Record Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss.Geometry
Input for several geometries of internal flow

Information

This icon is indicates a record.

Extends from Modelica.Icons.Record (Icon for records).

Fields

Type	Name	Description
`GeometryOfInternalFlow`	`geometry`	Choice of geometry for internal flow
`Length`	`K`	Roughness (average height of surface asperities)
`Length`	`L`	Length
`Diameter`	`d_ann`	Small diameter
`Diameter`	`D_ann`	Large diameter
`Diameter`	`d_cir`	Internal diameter
`Length`	`a_ell`	Half length of long base line
`Length`	`b_ell`	Half length of short base line
`Length`	`a_rec`	Horizontal length
`Length`	`b_rec`	Vertical length
`Length`	`a_tri`	Length of base line
`Length`	`h_tri`	Height to top angle perpendicular to base line
`Angle`	`beta`	Top angle

Record Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss.Orifice
Input for orifice

Information

This icon is indicates a record.

Extends from Modelica.Icons.Record (Icon for records).

Fields

Type	Name	Description
`Area`	`A_0`	Cross sectional area of vena contraction
`Length`	`C_0`	Perimeter of vena contraction
`Area`	`A_1`	Large cross sectional area of orifice
`Length`	`C_1`	Large perimeter of orifice
`Length`	`L`	Length of vena contraction

Record Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss.PressureLossInput
Input for pressure loss calculation

Information

This icon is indicates a record.

Extends from Modelica.Icons.Record (Icon for records).

Fields

Type	Name	Description
`PressureLossTarget`	`target`	Target variable of calculation
`Pressure`	`dp`	Pressure loss
`MassFlowRate`	`m_flow`	Mass flow rate

Record Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss.StraightPipe
Input for straight pipe

Information

This icon is indicates a record.

Extends from Modelica.Icons.Record (Icon for records).

Fields

Type	Name	Description
`Diameter`	`d_hyd`	Hydraulic diameter
`Length`	`L`	Length

Record Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss.Tjunction
Input for T-junction

Information

This icon is indicates a record.

Extends from Modelica.Icons.Record (Icon for records).

Fields

Type	Name	Description
`Boolean`	`united_converging_crossection`	true == A_cross_total = 2A_cross_branch \| false == A_cross_total > 2A_cross_branch
`Boolean`	`velocity_reference_branches`	true == pressure loss coefficients w.r.t. velocity in each passage \| false == w.r.t. velocity in total passage
`Integer`	`alpha`	Angle of branching
`Diameter`	`d_hyd[3]`	Hydraulic diameter of passages [side,straight,total]
`MassFlowRate`	`m_flow_min`	Restriction for smoothing at reverse fluid flow
`Velocity`	`v_max`	Restriction for maximum fluid flow velocity
`Real`	`zeta_TOT_max`	Restriction for maximum value of pressure loss coefficient

Record Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss.Diffuser
Input for diffuser

Information

This icon is indicates a record.

Extends from Modelica.Icons.Record (Icon for records).

Fields

Type	Name	Description
`Angle`	`alpha`	Diffuser diverging angle
`Area`	`A_1`	Small constant cross sectional area before diffuser section
`Area`	`A_2`	Large constant cross sectional area after diffuser section
`Length`	`C_1`	Small perimeter before diffuser section
`Length`	`C_2`	Large perimeter after diffuser section
`Length`	`L_1`	Length of straight pipe before diffuser section
`Length`	`L_2`	Length of straight pipe after diffuser section
`Length`	`L_d`	Length of diffuser section (parallel to bulk fluid flow)
`Pressure`	`dp_small`	Linearisation for a pressure loss smaller then dp_small
`Real`	`zeta_TOT_min`	Minimal pressure loss coefficient for infinite Reynolds number
`Real`	`zeta_TOT_max`	Maximum pressure loss coefficient for Reynolds number approaching zero

Record Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss.EdgedBend
Input for bend

Information

This icon is indicates a record.

Extends from Modelica.Icons.Record (Icon for records).

Fields

Type	Name	Description
`Diameter`	`d_hyd`	Hydraulic diameter
`Angle`	`delta`	Angle of turning
`Length`	`K`	Roughness (absolute average height of surface asperities)

Record Modelica.Fluid.Dissipation.Utilities.Records.PressureLoss.SuddenChange
Input for sudden change of diameter

Information

This icon is indicates a record.

Extends from Modelica.Icons.Record (Icon for records).

Fields

Type	Name	Description
`Area`	`A_1`	Small cross sectional area of orifice
`Area`	`A_2`	Large cross sectional area of orifice
`Length`	`C_1`	Small perimeter of orifice
`Length`	`C_2`	Large perimeter of orifice

Generated 2018-12-12 12:13:36 EST by MapleSim.