Name

Default

Units

Description

Modelica ID

$\mathrm{Segments}$

$10$

Number of segments

Numseg

$L$

$10$

$m$

Pipe length

L

$\mathrm{\epsilon }$

$1·{10}^{\mathrm{-4}}$

$m$

Pipe roughness

epsilon

$E_m$

$7·{10}^9$

$\mathrm{Pa}$

Young's modulus

Em

$\mathrm{D}$

$0.1$

$m$

Pipe diameter

Diameter

$t$

$0.001$

$m$

Pipe wall thickness

thickness

Name

Default

Units

Description

Modelica ID

$\mathrm{\alpha }$

$0$

Relative gas content = Vg/V

alpha

$k$

$1.4$

Heat ratio of gas (Cp/Cv)

k

$\mathrm{\tau }$

$0$

$s$

Expansion time constant

tau

Name

Default

Units

Description

Modelica ID

${\mathrm{Re}}_L$

$2000$

Reynolds number at transition to laminar flow

ReL

${\mathrm{Re}}_T$

$4000$

Reynolds number at transition to turbulent flow

ReT