redwanamit034
Mechanical
- Mar 10, 2013
- 19
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?
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?