Abstract
A two-dimensional transient model for convective heat transfer and surface tension driven fluid flow is developed. The model describes the transient behavior of the heat transfer process of a stationary band source. Semi-quantitative understanding of scanning is obtained by a coordinate transformation. The non-dimensional forms of the equations are derived and four dimensionless parameters are identified, namely, Peclet number (Pe), Prandtl number (Pr), surface tension number (S), and dimensionless melting temperature (T//m*). Their governing characteristics and their effects on pool shape, cooling rate, velocity field, and solute redistribution are discussed. A numerical solution is obtained and presented. Quantitative effects of Prandtl number and surface tension number on surface velocity, surface temperature, pool shape, and cooling rate are presented graphically.
Original language | English (US) |
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Pages (from-to) | 2175-2184 |
Number of pages | 10 |
Journal | Metallurgical Transactions A |
Volume | 15 A |
Issue number | 12 |
DOIs | |
State | Published - 1983 |
Externally published | Yes |
Event | Symp on Fluid Flow at Solid-Liq Interfaces - Philadelphia, PA, USA Duration: Oct 5 1983 → Oct 5 1983 |
ASJC Scopus subject areas
- General Engineering