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What's important?

Question asked by Steve Calkins on Jan 30, 2015
Latest reply on Feb 13, 2015 by Jared Conway

Hi All,

 

I've been running a model, making adjustments and re-running, trying to get results that match up with my actual test results.

 

The model is of a glass plate being cooled by air flow across it.  I have the real-life machine in the shop, and have measured the temperature drop in it with a TC-equipped glass plate.  As far as I can tell, the model is as close to reality as I can get it.

 

However, my real-life results are radically different from the flow model results.  In real-life, my glass plate starts out at about 150C, and is at about 25C after air blowing across it for 2-1/2 minutes.  In the simulation, it only comes down to 80C.

 

I'm running the steady-state simulation first, then transferring those results to the transient simulation with flow freezing enabled.

I've measured the atmospheric pressure, humidity and temperature in the area, and entered those values into the model.

I've entered a table of temperature-dependent specific heat for the glass.

 

Am I missing some parameter or material property that would improve the accuracy of the model?

 

Thanks

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