Abstract
Modeling of the laser induced heating process can yield much insight into the phenomena occurring within the laser-workpiece interaction region. This study investigates the influence of the workpiece speed on the resulting temperature profiles during the gas-assisted laser heating process. Air is considered as impinging onto a steel workpiece coaxially with the laser beam, while the workpiece is assumed to move with a constant speed. The governing three-dimensional flow and energy equations are simulated numerically using a control volume approach. The low Reynolds number k-ε model is introduced to account for the turbulence. During the simulations variable properties of gas and solid are considered. It is found that the workpiece speed has a significant effect on the resulting temperature profiles; specifically, an increase in the workpiece speed results in a decrease of the maximum temperature attained at the workpiece surface.
| Original language | English |
|---|---|
| Pages (from-to) | 757-775 |
| Number of pages | 19 |
| Journal | Numerical Heat Transfer; Part A: Applications |
| Volume | 42 |
| Issue number | 7 |
| DOIs | |
| State | Published - 15 Nov 2002 |
Bibliographical note
Funding Information:Receievd 18 July 21;0acce0pted 2 February 22.00 The author acknowledges the support of King Fhd Unaievriystof Petroleum and Minerl,asDhah-rn,aSudiaAra,bfor thiisawork. Address correspondence to Dr. S. Z. Shuj,aDept. of Mechanical Engineringe, King Fahd Unievr-sity of Petroleum and Mieralsn, P.O. Box 16, 4Dhahran2, 361, Saud12i Ara.bE-imi:[email protected]
ASJC Scopus subject areas
- Numerical Analysis
- Condensed Matter Physics