Abstract
Surface tension variations on the surface of the weld pool produced by a laser during the process of welding, can produce very strong currents. A linearized description of the process is constructed, as well as a non-linear boundary layer model that takes account of thermal conduction and fluid convection. It is found that there is a considerable difference between the predictions of the two approaches. The non-linear model produces results that are compatible with what is believed to occur in practice.
| Original language | English |
|---|---|
| Pages (from-to) | 15-20 |
| Number of pages | 6 |
| Journal | Journal Physics D: Applied Physics |
| Volume | 24 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 14 Jan 1991 |