PQ2 Diagram

Brian_20847
Brian_20847 Altair Community Member
edited August 2023 in Community Q&A

Hi everyone, 

I want to ask some questions about PQ2 Diagram. 

  1. When the current setup is not in the safe region, will it affect the results? 
  2. What is the difference between the maximum allowed solid fraction and the maximum allowed solid fraction constant? Why does the maximum allowed solid fraction constant has units of degree C?
  3. What is Tnoflow? Whether h is a shot sleeve length? S is the total ingate area value, right?

Best Regards.

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Answers

  • Shibashis Ghosh_22127
    Shibashis Ghosh_22127
    Altair Employee
    edited August 2023

    1. pq2 parameters will not affect the simulation result, its just to check how much pressure vs flow is demanded from the machine as per the simulation process parameters.

    2. The max allowed solid fraction constant (Z)is a factor converting the solid fraction (S) to temperature, at a very high level so k_sf is trying to add additional heat below noflow on accout of solidfraction, to kind of calculate fill time.

    3. Tnoflow is the no flow temperature of the melt. h= casting wall thickness. S= solid fraction

     

    Regards,

    Shibashis

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