# 7.6.7.7.1. Correlation

Syntax

  Gnielinski Film Gradient Correction [{of} SpeciesName] = Correlation (Phase = phase | [Gas_Exponent = gas_exponent] | [Bulk_Node_Interface = bulk_node_interface])

Scope

  Aria Material

Summary

  Correction factor for difference between near-wall and bulk fluid state for Gnielinski pipe and annulus correlations.

Parameter | Value | Default
--- | --- | ---
{of} | {of | species | subindex} | –
SpeciesName | string | –
phase | “string” | –
gas_exponent | real | 0.45
bulk_node_interface | “string” | FALSE