Specifying the Film Heat Transfer

The temperature distribution over the film has great influence on the film formation, that is, its thickness and width. To capture this distribution accurately, you take both convection and radiation into account. The film has a temperature of 400 K at the die exit; the environment and the chill roll have a temperature of 300 K.

To specify the film heat transfer:
  1. Edit the Regions > Film node and set the following properties:
    Node Property Setting
    Physics Conditions
    Flux Option Option Convection & Radiation
    Physics Values
    Ambient Temperature Value 300.0 K
    Heat Transfer Coefficient Value 30 W/m^2-K
    Surface Emissivity 0.8
  2. Save the simulation.