Jet impingement onto kerf: Effect of kerf wedge angle on heat transfer rates and skin friction

Omar A. Melhem, Bekir S. Yilbas*, S. Z. Shuja

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Jet impingement onto a kerf is considered in relation to laser cutting process. Flow and temperature fields are predicted using the three-dimensional modeling. In the simulations influence of kerf wall wedge angle on the Nusselt number and the skin friction at the surface of the kerf wall is examined. The RNG k-ε model is incorporated to account for the turbulence. A control volume approach is introduced to discretize the governing flow equations. It is found that the kerf wall wedge angle has considerable influence on the Nusselt number and the skin friction.

Original languageEnglish
Pages (from-to)76-87
Number of pages12
JournalOptics and Laser Technology
Volume56
DOIs
StatePublished - 2014

Bibliographical note

Funding Information:
The authors acknowledge the support of King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia.

Keywords

  • Jet impingement
  • Kerf Wedge angle

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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