×
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

Latent Heat problem

Latent Heat problem

Latent Heat problem

(OP)
Hello,

I am simulating heating of a copper wire with laser welding. I am using a uncoupled heat transfer model for this purpose. As I am applying very high heat flux, the temperature goes up instantly. When I don't define melting. there is no problem with the model. However, when I defined melting I got convergence problem. I defined the latent heat, solidus and liquidus temperature in the material editor like this - 207 KJ, 1358K and 1358.1K. The model is not converging. But if I define solidus and liquidus temperature as 1358K and 1360K, the model is converging.

What is going wrong in the first case? As I am using pure copper, I shouild be using a solidus and liquidus temperature as close as possible. Any suggestion?

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