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MapleSim Hydraulics Library from Modelon

Oil_ISO_VG_68_MOBIL_DTE_26  Medium model of ISO_VG_68_MOBIL_DTE_26

Medium model of ISO_VG_68_MOBIL_DTE_26. The bulk modulus is equal to the isothermal bulk modulus.

Medium validity range

Pressure: 1..1500 bar (absolute pressure)

Temperature: 0..120 °C

Outside the validity range the medium properties are extrapolated.

Parameters

General Parameters

Name

Default

Units

Description

Modelica ID

T0

293.15

K

Working temperature

T0

p0

107

Pa

Reference pressure

p0

pvapour

100

Pa

Absolute vapour pressure

p_vapour

patm

105

Pa

Atmospheric pressure: in case change is wanted for high altitudes

p_atm

display labels

false

 

Display labels

display_labels

Gas Parameters

Name

Default

Units

Description

Modelica ID

vgas

10-6

1

Gas/(hydraulic medium) volume fraction  at atmospheric pressure and 0 degC

v_gas

av

6.8

 

Bunsen coefficient

av

ρgas0

1.28

kgm3

Gas density at atmospheric pressure and 0 degC

rho_gas_0

νgas

1.5·10-5

m2s

Gas kinematic viscosity

nu_gas

Constant Parameters

Name

Default

Units

Description

Modelica ID

from file

false

 

Read table data from file

from_file

kinematic viscosity data

false

 

If true, model assumes that viscosity data is kinematic else dynamic

kinematicViscosityData

file name

NoName

 

 

file_name

density table name

NoName

 

Table for density at p = 1 bar abs

density_T_table_name

viscosity table name

NoName

 

Table for viscosity

viscosity_table_name

bulk modulus table name

NoName

 

Table for bulk modulus

bulk_modulus_table_name

density table

 

 

Density tabular data at p = 1.0 bar.  See Tabular Oil for format; see graph, below.

density_T_table

viscosity table

 

 

Dynamic viscosity tabular data.  See Tabular Oil for format; see graph, below.

viscosity_table

logbase

10

 

Logarithmic base for tabulated viscosity

log_base

bulk modulus table

 

 

Bulk modulus tabular data.  See Tabular Oil for format; see graph, below.

bulk_modulus_table

density smoothness

[1]

 

Smoothness of density table interpolation

density_smoothness

viscosity smoothness

[1]

 

Smoothness of viscosity table interpolation

viscosity_smoothness

bulk modulus smoothness

[1]

 

Smoothness of bulk modulus table interpolation

bulk_modulus_smoothness

A

0

 

Coefficient for temperature dependent viscosity

A

B

0

 

Coefficient for temperature dependent viscosity

B

α

0

 

Coefficient for pressure dependent viscosity

alpha

[1] Modelica.Blocks.Types.Smoothness.ContinuousDerivative

Constants

Name

Value

Units

Description

Modelica ID

Tref

273.15

K

Reference temperature for v_air

T_ref

pref

105

Pa

Reference pressure for v_air

p_ref

See Also

Fluids, MapleSim Hydraulics Library from Modelon Overview


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