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Transient axisymmetric model for las...

DeSilva, Sirilath Jayaman.

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Transient axisymmetric model for laser drilling.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Transient axisymmetric model for laser drilling./
Author:	DeSilva, Sirilath Jayaman.
Description:	154 p.
Notes:	Source: Dissertation Abstracts International, Volume: 64-09, Section: B, page: 4576.
Contained By:	Dissertation Abstracts International64-09B.
Subject:	Engineering, Mechanical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3106978

Transient axisymmetric model for laser drilling.
DeSilva, Sirilath Jayaman.

Transient axisymmetric model for laser drilling. - 154 p.

Source: Dissertation Abstracts International, Volume: 64-09, Section: B, page: 4576.

Thesis (Ph.D.)--The University of Arizona, 2003.

A transient axisymmetric model is developed to study the laser drilling phenomenon. Governing equations are the transient axisymmetric 3-D heat conduction equation for the solid substrate and for the liquid molten part, the thin layer model (TLM) equations are utilized. Boundary element method (BEM) is used for the region encompassing the moving boundary and finite difference method (FDM) is utilized for the remainder. BEM and FDM are coupled using flux and temperature at their interface. TLM is obtained using simplified free surface, mass, momentum and energy equations in body intrinsic coordinates. They are simplified by integrating across the layer using profiles for velocity and temperature thus obtaining a 1-D transient hyperbolic system. This is solved by a space-time flux conservation method. The TLM is coupled to the BEM-FDM by the common interface matching conditions. The constitutive equations governing laser interaction with material are used at the liquid-vapor interface.Subjects--Topical Terms:

783786
Engineering, Mechanical.

Transient axisymmetric model for laser drilling.
LDR:01827nmm 2200265 4500 001 1866554
005 20050105140200.5
008 130614s2003 eng d
035 $a (UnM)AAI3106978
035 $a AAI3106978
040 $a UnM $c UnM
100 1 $a DeSilva, Sirilath Jayaman. $3 1953934
245 1 0 $a Transient axisymmetric model for laser drilling.
300 $a 154 p.
500 $a Source: Dissertation Abstracts International, Volume: 64-09, Section: B, page: 4576.
500 $a Director: Cho Lik Chan.
502 $a Thesis (Ph.D.)--The University of Arizona, 2003.
520 $a A transient axisymmetric model is developed to study the laser drilling phenomenon. Governing equations are the transient axisymmetric 3-D heat conduction equation for the solid substrate and for the liquid molten part, the thin layer model (TLM) equations are utilized. Boundary element method (BEM) is used for the region encompassing the moving boundary and finite difference method (FDM) is utilized for the remainder. BEM and FDM are coupled using flux and temperature at their interface. TLM is obtained using simplified free surface, mass, momentum and energy equations in body intrinsic coordinates. They are simplified by integrating across the layer using profiles for velocity and temperature thus obtaining a 1-D transient hyperbolic system. This is solved by a space-time flux conservation method. The TLM is coupled to the BEM-FDM by the common interface matching conditions. The constitutive equations governing laser interaction with material are used at the liquid-vapor interface.
590 $a School code: 0009.
650 4 $a Engineering, Mechanical. $3 783786
650 4 $a Physics, Fluid and Plasma. $3 1018402
690 $a 0548
690 $a 0759
710 2 0 $a The University of Arizona. $3 1017508
773 0 $t Dissertation Abstracts International $g 64-09B.
790 1 0 $a Chan, Cho Lik, $e advisor
790 $a 0009
791 $a Ph.D.
792 $a 2003
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3106978