Gnielinski

fullflow.Gnielinski

Gnielinski turbulent forced-convection heat transfer coefficient.

Gnielinski computes the convective heat transfer coefficient for turbulent internal flow using the Gnielinski correlation. The correlation incorporates the Darcy friction factor and is generally more accurate than simpler Dittus-Boelter-style correlations over much of the transitional and turbulent regime.

Parameters

Name	Type	Description
name	str	Component name
network	Network	Network that owns this component
mass_flow	State	Fluid mass flow rate. The absolute value is used
hydraulic_diameter	State or float	Hydraulic diameter of the flow passage
friction_factor	State or float	Darcy friction factor
fluid_conductivity	State	Fluid thermal conductivity
fluid_specific_heat	State	Fluid specific heat capacity
fluid_dynamic_viscosity	State	Fluid dynamic viscosity
cross_sectional_area	State or float	Flow cross-sectional area
reynolds_number	State or float, optional	Reynolds number. If omitted, it is calculated
prandtl_number	State or float, optional	Prandtl number. If omitted, it is calculated
nusselt_number	State or float, optional	Output Nusselt number
stanton_number	State or float, optional	Output Stanton number

Outputs

Name	Type	Description
convection_coefficient	State, optional	Convective heat transfer coefficient. If omitted, a new State is created