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Author Dolgaev, Sergei I. ♦ Kirichenko, N. A. ♦ Simakin, Aleksandr V. ♦ Shafeev, Georgii A.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ CAPILLARIES ♦ COOLING ♦ DISTURBANCES ♦ EXPERIMENTAL DATA ♦ LASER RADIATION ♦ LASER-RADIATION HEATING ♦ MELTING ♦ NAVIER-STOKES EQUATIONS ♦ NUMERICAL SOLUTION ♦ PERIODICITY ♦ REFLECTIVITY ♦ SURFACE TENSION ♦ TEMPERATURE DEPENDENCE ♦ TEMPERATURE GRADIENTS ♦ THREE-DIMENSIONAL CALCULATIONS ♦ BLOOD VESSELS ♦ BODY ♦ CARDIOVASCULAR SYSTEM ♦ DATA ♦ DIFFERENTIAL EQUATIONS ♦ ELECTROMAGNETIC RADIATION ♦ EQUATIONS ♦ HEATING ♦ INFORMATION ♦ MATHEMATICAL SOLUTIONS ♦ NUMERICAL DATA ♦ OPTICAL PROPERTIES ♦ ORGANS ♦ PARTIAL DIFFERENTIAL EQUATIONS ♦ PHASE TRANSFORMATIONS ♦ PHYSICAL PROPERTIES ♦ PLASMA HEATING ♦ RADIATIONS ♦ SURFACE PROPERTIES ♦ VARIATIONS
Abstract The initial stage of three-dimensional periodic structures developing during the laser melting of solids is numerically simulated. The temperature nonuniformity caused by reflectivity variations along a capillary wave leads to a self-consistent melt displacement under the action of the temperature gradient due to the temperature dependence of the surface tension coefficient. Based on the numerical solution of the simplified Navier-Stokes equation, the transformation of the initial sinusoidal perturbation of the melt surface is investigated at the stages of self-consistent laser heating and the subsequent cooling. The derived surface shape well agrees with experimental data. (interaction of laser radiation with matter. laser plasma)
ISSN 10637818
Educational Use Research
Learning Resource Type Article
Publisher Date 2004-08-31
Publisher Place United States
Journal Quantum Electronics
Volume Number 34
Issue Number 8


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