Numerical Simulation and Experimental Measurement of Velocity Field of Powder Fluid in Laser Manufacturing

Abstract:

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Laser direct manufacturing and re-fabricating have been used in many important fields in recent years. However, simulation and measurement of velocity fields in carrying gas and powder particles are still a challenge. In this paper finite difference method has been selected to simulate the velocity fields of powder/gas fluid. A novel DPIV system has been developed to measure the velocity fields. The DPIV system mainly consists of Nd+:YAG laser and CCD camera. Comparing the result of DPIV measuring with computer simulating, a good agreement can be obtained. After further developing, DPIV will become a useful device for laser manufacturing.

Info:

Periodical:

Key Engineering Materials (Volumes 392-394)

Edited by:

Guanglin Wang, Huifeng Wang and Jun Liu

Pages:

443-447

DOI:

10.4028/www.scientific.net/KEM.392-394.443

Citation:

X. C. Yang et al., "Numerical Simulation and Experimental Measurement of Velocity Field of Powder Fluid in Laser Manufacturing", Key Engineering Materials, Vols. 392-394, pp. 443-447, 2009

Online since:

October 2008

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Price:

$35.00

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