General $—$ Model for general hydraulic resistance

The General component calculates a generic pressure loss. The calculation depends on a pressure loss coefficient.

Connections

 Name Description Modelica ID ${\mathrm{port}}_{A}$ Layout of port where oil flows into an element ($0<{m}_{\mathrm{flow}}$, ${p}_{B}<{p}_{A}$ means $0<\mathrm{Δp}$) port_A ${\mathrm{port}}_{B}$ Hydraulic port where oil leaves the component (${m}_{\mathrm{flow}}<0$, ${p}_{B}<{p}_{A}$ means $0<\mathrm{Δp}$) port_B $\mathrm{oil}$ oil

Parameters

General Parameters

 Name Default Units Description Modelica ID ${\mathrm{ΔT}}_{\mathrm{system}}$ $0$ $K$ Temperature offset from system temperature dT_system use volume A $\mathrm{true}$ If true, a volume is present at port_A useVolumeA use volume B $\mathrm{true}$ If true, a volume is present at port_B useVolumeB ${V}_{A}$ ${10}^{-6}$ ${m}^{3}$ Geometric volume at port A volumeA ${V}_{B}$ ${10}^{-6}$ ${m}^{3}$ Geometric volume at port B volumeB

Hydraulic Resistance Parameters

 Name Default Units Description Modelica ID ${\mathrm{\zeta }}_{\mathrm{tot}}$ $\frac{1}{5}$ $1$ Pressure loss coefficient zeta_TOT ${A}_{\mathrm{cross}}$ [1] ${m}^{2}$ Cross sectional area A_cross ${\mathrm{Δp}}_{\mathrm{smooth}}$ $1$ $\mathrm{Pa}$ Start linearization for decreasing pressure loss dp_smooth

[1] $\frac{1}{40000}\mathrm{\pi }$