Error Found while simulating Convection (Heat Transfer)

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Here I have send you the Error Message that I can see after Pre-Processing in Optistruct.

 

Can you tell me which steps I have to take care while doing convection and Conduction Simulation...

 

Thank you,

 

Regards,

Jay

<?xml version="1.0" encoding="UTF-8"?>Error in Convection.PNG

<?xml version="1.0" encoding="UTF-8"?>error in Convection1.PNG

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2016

    Hi Nayak,

     

    Looks like you did not apply a valid material/material card.

     

    Please create a MAT4 card and refer the same in PCONV card.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2016

    Hey Prakash,

     

    I already gave Temp 100 on top side and on the bottom side I have given 20 Degree cel. and I have select one Node in between my model and select as a 20 degree temp and make convection. I got error which you can see below pict:

    <?xml version="1.0" encoding="UTF-8"?>Convection 100 degree.PNG

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2016

    Hi Nayak,

     

    In CONV card ambient temperature is missing. Please correct this and try again.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2016

    I have already apply ambient Temp. As mention in OS- 1085, and I took SPCADD Card for two different temp Load Collector. Top 100 degree and Bottom 20 degree and in between I Chose one Point for ambient temp which has 20 degree temp and make convection.

    <?xml version="1.0" encoding="UTF-8"?>Conv Card Conv Error.PNG

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2016

    Hi Nayak,

     

    Slave set ID is missing in CONTACT card, please update and run again.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2016

    How can I edit Slave Set ID; I have seen in my Contact surface window but it doesn't Show anythings regarding Slave set..

     

     

    It Shows only EID; GID1 and GID2 that I have already mention....

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2016

    I got error like that : CONV ID  ::::::: CONV ambient Point TA must be in SPC set of heat Transfer subcase.

     

    I have taken one node for ambient temp and given it ID 1000000 and HEAT TRANSFER is my Load step....

    <?xml version="1.0" encoding="UTF-8"?>MyNewModel.PNG

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2016

    Hello Friends,

     

    I am doing Heat Transfer Analysis. I have both the cases- Convection and Convection. On the top of my Part there is higher Temp. Zone and there I have apply convection then High temp goes inside my Element and perform Conduction. Analysis also done with no Errors but I can't understand the result which I have found in Element Fluxes types. It doesn't make sense. It Shows my most of the part like Zero Heat flux... and I can only see top part has heat flux which has higher temperature.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2016

    Hi Nayak,

     

    Can you check if there is any modelling issue?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2016

    How can I see/check the error from Modelling or not?

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