Bend Curve $—$ Model for curved bend geometry

The Bend Curve component calculates the pressure loss for flow through a circular cross-sectional area undergoing a curved bend. The component takes into consideration surface roughness.

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 ${d}_{\mathrm{hyd}}$ $0.01$ $m$ Hydraulic diameter d_hyd $\mathrm{\Delta }$ [1] $\mathrm{rad}$ Angle of turning delta $K$ $0$ $m$ Roughness (absolute average height of surface asperities) K ${R}_{0}$ $\frac{1}{2}{d}_{\mathrm{hyd}}$ $m$ Curvature radius R_0

[1] $\frac{1}{2}\mathrm{\pi }$