Share

New Cool results

Two new default results, Circuit friction factor and Circuit minor loss coefficient, have been added to all Cool and Cool (FEM) analyses, so you can see the performance of your cooling circuit.

These new results, Circuit friction factor and Circuit minor loss coefficient, are also included in the new Coolant Flow analysis.

These results are found in the Cool results folder, and are supported for:

Molding ProcessAnalysis sequence
Coolant FlowCoolant Flow
All molding process that offer a Cool analysisSequences that include Cool or Cool (FEM)

and for all mesh types:

  • 3D
  • Dual Domain
  • Midplane

To obtain these results, run a Coolant Flow analysis, or any analysis sequence that includes Cool or Cool (FEM).

Circuit friction factor result

The friction factor determines the frictional losses in the channel, and is dependent on the sand grain roughness factor, (e/D), of the channel and the Reynolds number, Re, of the fluid flowing through it. This correlation is shown empirically in the Moody diagram. By default, the software uses the Swarmee-Jain approximation to the Colebrook-White equation to provide a numerical solution to the Moody diagram. This result enables you to see where in the circuit there are frictional losses.

Circuit minor loss coefficient result

The minor loss, or K factor, is the resistance to flow contributed by each elbow, bend, T Junction, and change in dimension, in the channel. In cooling circuits, these minor losses can become significant. By default, the software calculates an approximation for the minor losses, which you can see in the Circuit minor loss coefficient result. To obtain more accurate results, you can enter K factors from the manufacturers of your circuit components.

Was this information helpful?