The Temperature, runner (average, profile) result is a Dual Domain result that shows the temperature of the runner, calculated for each time step of the cycle and plotted at the point where the normalized thickness = 1.000.
This profile is based on the average mold surface temperature for the cycle, which includes the clamp open time. The temperature laminate results are calculated using a finite difference method through the thickness of the runner.
Using this result
To see how the temperature varies through the thickness of the runner, you can create an XY plot of the result at different points on the runner. To do this, click 
, then click 
and scroll down to the Temperature, runner (average, profile) result. Remember to change the Plot type to XY plot, and on the Plot Properties tab, change the Independent variable from Time to Normalized thickness.
Expect to see that thicker regions of the runner are hotter than the thinner sections of the runner or gate. The cooling solver does not take shear heating into account hence the thinner sections, such as gates, should not be hotter than thicker sections. This result shows the time taken for the average temperature to reach a given value, such as ejection time or freeze time. This result can also be used to find the ideal position of cooling channels, since the effect of the cooling channel position in relation to a runner can be seen.
The runner temperature can be studied more closely by reducing the temperature range. To do this, click on , selecting 
and decrease the value in the Max box.
Things to look for
When viewing the Temperature, runner (average, profile) result, watch for the following.
- Check that the average temperature is well below the ejection temperature for the material at the end of cooling, so that the part can be ejected successfully.
- Look out for problems with smaller runner sections cooling too fast.
- Check that the gate is not freezing too quickly