×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Heat transfer analysis of an aluminium sheet

Heat transfer analysis of an aluminium sheet

Heat transfer analysis of an aluminium sheet

(OP)
I am trying to model the heat trasfer in a square Aliminuim sheet. Heat is applied to the sheat from a heater block that is attatched to the Aliminuim sheet in the middle. The power from the heater is 150 W and the sheet is initially at room temperature.I'm not sure about a few things:

1) When I create a step , do I choose General heat transfer as the procedure type? And to define the steps do I choose transient or steady-state?

do I define the initial temperature of the mould?

2) What type of loading do I need to use?

3) How do I apply the heat flux in the middle of the sheet? A surface load? I tried to apply a surface load on the surface of the section of the sheet where the heater is attatched but that didn't work and had to apply body forces!

I am desperate for answers. Thank you very much!  

RE: Heat transfer analysis of an aluminium sheet

Is this for a school project?

RE: Heat transfer analysis of an aluminium sheet

Look in the interaction module to apply a surface heat flux. You also need to decide what conditions apply to the free surfaces of the sheet. Whether you need a steady state solution or transient is up to what you need from the model.

corus

RE: Heat transfer analysis of an aluminium sheet

(OP)
Thanks Corus! I think I've managed to do it. I am getting an error that says:

NO VALID RADIATION OUTPUT REQUESTS HAVE BEEN GENERATED. THIS MAY BE DUE TO EARLIER INPUT ERRORS OR SPECIFICATION OF A NONEXISTANT CAVITY OR SURFACE NAME

Do you know what it is implying?  

RE: Heat transfer analysis of an aluminium sheet

Check the interactions as it sounds like you have defined cavity radiation with incorrect surfaces. Of course if you have a block sat on a plate then you'll need to define an 'open' cavity so that the surface from the block radiates to the free surface of the plate.

corus

RE: Heat transfer analysis of an aluminium sheet

(OP)
I've ignored radiation and am just looking at condution and convection!! The block is sat on the plate, so I've partitioned the Aluminuim sheet so that I can apply the heat flux coming from the block at that partitioned face. Is that method ok? Cause its not really working?

Thanks!  

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources