This information is part of the Modelica Standard Library maintained by the Modelica Association.

Calculation of pressure loss for two phase flow in a horizontal or vertical straight pipe for an overall flow regime considering frictional, momentum and geodetic pressure loss.

Generally the pressure loss for two phase flow in a horizontal or a vertical straight pipe can be calculated for the following fluid flow regimes:

Horizontal fluid flow [(a) bubble flow, (b) stratified flow, (c) wavy flow, (d) slug flow, (e) annular flow]:

Vertical fluid flow [(a) bubble flow, (b) plug slug flow, (c) foam flow, (d) annular streak flow, (e) annular flow]:

See more information.

DP = dp_twoPhaseOverall_DP(IN_con, IN_var, m_flow)

IN_con	Type: dp_twoPhaseOverall_IN_con Description: Input record for function dp_twoPhaseOverall_DP
IN_var	Type: dp_twoPhaseOverall_IN_var Description: Input record for function dp_twoPhaseOverall_DP
m_flow	Type: MassFlowRate (kg/s) Description: Mass flow rate

DP	Type: Pressure (Pa) Description: Two phase pressure loss