functiondp_curvedOverall_DP

Pressure loss of curved bend | calculate pressure loss | overall flow regime | surface roughness

Extends from Modelica.Icons.Function (Icon for functions).

Information

Calculation of pressure loss in curved bends at overall flow regime for incompressible and single-phase fluid flow through circular cross sectional area considering surface roughness.

Generally this function is numerically best used for the incompressible case, where the mass flow rate (m_flow) is known (as state variable) in the used model and the corresponding pressure loss (DP) has to be calculated. On the other hand the function dp_curvedOverall_MFLOW is numerically best used for the compressible case if the pressure loss (dp) is known (out of pressures as state variable) and the mass flow rate (M_FLOW) has to be calculated. See more information.

Inputs

TypeNameDefaultDescription
Modelica.Fluid.Dissipation.PressureLoss.Bend.dp_curvedOverall_IN_conIN_conInput record for function dp_curvedOverall_DP
Modelica.Fluid.Dissipation.PressureLoss.Bend.dp_curvedOverall_IN_varIN_varInput record for function dp_curvedOverall_DP
SI.MassFlowRatem_flowMass flow rate

Outputs

TypeNameDefaultDescription
SI.PressureDPOutput for function dp_curvedOverall_DP

Revisions

2014-12-12 Stefan Wischhusen: Factor A2 corrected for R/D > 0.55-0.7. The factor is now 6e3 instead of 4e3.