functionalpha_Chen_TubeFlow
Chen's correlation for two-phase flow in a tube
Information
Chen's correlation for the computation of the heat transfer coefficient in two-phase flows.
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Length | D | Hydraulic diameter | |
| TRANSFORM.Units.MassFlux | G | Mass flux | |
| TRANSFORM.Units.NonDim | x | Absolute Steam quality | |
| SI.Density | rho_fsat | Saturated liquid density | |
| SI.DynamicViscosity | mu_fsat | Liquid dynamic viscosity | |
| SI.ThermalConductivity | lambda_fsat | Liquid thermal conductivity | |
| SI.SpecificHeatCapacity | cp_fsat | Liquid constant pressure heat capacity | |
| SI.SurfaceTension | sigma | Surface Tension | |
| SI.Density | rho_gsat | Vapour density | |
| SI.DynamicViscosity | mu_gsat | Vapour dynamic viscosity | |
| SI.SpecificEnthalpy | h_fg | Latent heat of vaporization | |
| SI.TemperatureDifference | Delta_Tsat | Saturation temperature difference (Twall-Tsat) | |
| SI.PressureDifference | Delta_psat | Saturation pressure difference (psat(Twall)-psat(Tsat)) |
Outputs
| Type | Name | Default | Description |
|---|---|---|---|
| SI.CoefficientOfHeatTransfer | alpha | Two-phase total heat transfer coefficient | |
| Real | X_tt_inv | Inverse of the Martenelli Parameter | |
| Real | F | Correction factor for two-phase impact on liquid-phase convection | |
| Real | S | Nucleare boiling suppresion factor | |
| Real | Re_tp | Two-phase Reynolds number |