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MapleSim Hydraulics Library from Modelon

Channel  Model for channel geometry

The Channel component calculates the pressure loss for flow through different geometries. The component takes into consideration surface roughness.

Connections

Name

Description

Modelica ID

portA

Layout of port where oil flows into an element (0<mflow, pB<pA means 0<&Delta;p)

port_A

portB

Hydraulic port where oil leaves the component (mflow<0, pB<pA means 0<&Delta;p)

port_B

oil

 

oil

Parameters

General Parameters

Name

Default

Units

Description

Modelica ID

&Delta;Tsystem

0

K

Temperature offset from system temperature

dT_system

use volume A

true

 

If true, a volume is present at port_A

useVolumeA

use volume B

true

 

If true, a volume is present at port_B

useVolumeB

VA

10-6

m3

Geometric volume at port A

volumeA

VB

10-6

m3

Geometric volume at port B

volumeB

Hydraulic Resistance Parameters

Name

Default

Units

Description

Modelica ID

geometry

[1]

 

Choice of geometry for internal flow

geometry

L

1

m

Length

L

K

0

m

Roughness (average height of surface asperities)

K

dann

dcir

m

Small diameter

d_ann

Dann

2dann

m

Large diameter

D_ann

dcir

0.01

m

Internal diameter

d_cir

aell

34dcir

m

Half length of long base line

a_ell

bell

12aell

m

Half length of short base line

b_ell

arec

dcir

m

Horizontal length

a_rec

brec

arec

m

Vertical length

b_rec

atri

dcir1&plus;2

m

Length of base line

a_tri

htri

12atri

m

Height to top angle perpendicular to base line

h_tri

β

[2]

rad

Top angle

beta

[1] Modelica.Fluid.Dissipation.Utilities.Types.GeometryOfInternalFlow.Circular

[2] 12π

See Also

HydraulicResistance, MapleSim Hydraulics Library from Modelon Overview


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