A Hollow rectangular frame made of steel, having air inside, is in contact with a Hot surface(having fixed temperature). How can we simulate the convection taking place between the pipe and air inside in AcuConsole

avb
avb Altair Community Member
edited August 2022 in Community Q&A
Tagged:

Answers

  • acupro
    acupro
    Altair Employee
    edited August 2022

    Could you attach an image or two of the simulation model/domain with the desired boundary conditions?

    Is the rectangular frame (is that what you also refer to as pipe?) completely closed - so the air is completely captured with no inlets/outlets?

  • acupro
    acupro
    Altair Employee
    edited August 2022

    I created a demo model - using the just-released HyperWorks CFD 2022.1.  I've attached that database, along with a results animation.  This has two volumes - a steel enclosure and the fluid volume inside it.  The bottom of the steel enclosure has a defined temperature, and the other outer surfaces have a convective heat flux coefficient with reference temperature.  The air inside has a Boussinesq density - such that it can change with temperature.

    As with many (or most) natural convection flows, there is no steady-state solution, so this is set to run transient.

  • avb
    avb Altair Community Member
    edited August 2022

    This is what my model looks like. Air inside the frame is what I am facing issue with.(how to model convection in air) 

  • acupro
    acupro
    Altair Employee
    edited August 2022
    avb said:

    This is what my model looks like. Air inside the frame is what I am facing issue with.(how to model convection in air) 

    That's pretty much what the example attached earlier does - except it only has one surface with a defined temperature.  What have you tried so far - using that example as a guide?  Do you have access to HyperWorks CFD 2022.1 - to open that model?

Categories