首页   按字顺浏览 期刊浏览 卷期浏览 FINITE ELEMENT STUDY ON THE ROLE OF CONVECTION IN LASER SURFACE MELTING
FINITE ELEMENT STUDY ON THE ROLE OF CONVECTION IN LASER SURFACE MELTING

 

作者: K. Ravindran,   J. Srinivasan,   A. G. Marathe,  

 

期刊: Numerical Heat Transfer, Part A: Applications  (Taylor Available online 1994)
卷期: Volume 26, issue 5  

页码: 601-618

 

ISSN:1040-7782

 

年代: 1994

 

DOI:10.1080/10407789408956012

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

The surface-tension-driven convection in laser melting has been simulated by the Galerkin finite element method. The governing laminar, axisymmelric convection equations are solved in a sequential manner by an explicit projection method. The numerical results show a strong dependence of the flow pattern on the value of the temperature coefficient of surface tension (σT). Results are presented for a range of σTvalues typical in steel, -l0−4≤σT+ l0−4N/mK. As the melt depth is more affected than the width, the melt aspect ratio changes due to convection. The melt pool is broad and shallow when σT< 0, and deep and narrow when σT> 0.

 

点击下载:  PDF (437KB)



返 回