Development of multivortex flow of a stainless-steel melt under the action of laser radiation on its surface
| Autor: | A G Krasyukov, G F Antonova, A I Loboiko, G G Gladush, F. K. Kosyrev, V V Likhanskii, V P Sayapin |
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| Rok vydání: | 1998 |
| Předmět: |
Convection
Materials science Marangoni effect business.industry Flow (psychology) Reynolds number Statistical and Nonlinear Physics Mechanics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Vortex Physics::Fluid Dynamics symbols.namesake Optics Condensed Matter::Superconductivity Heat transfer symbols Fluid dynamics Electrical and Electronic Engineering business Melt flow index |
| Zdroj: | Quantum Electronics. 28:430-433 |
| ISSN: | 1468-4799 1063-7818 |
| DOI: | 10.1070/qe1998v028n05abeh001242 |
| Popis: | A numerical investigation was made of the structure of thermocapillary convection of a laser melt formed by radiation with various parameters in the specific case of SS304 stainless steel. A critical Reynolds number was found: above this number a single-vortex structure of the melt flow changed to two vortices. A comparison of the shape of the molten pool predicted by numerical calculations with experiments confirmed the existence of a two-vortex structure initiated solely by thermocapillary forces on the melt surface. A correlative dependence was proposed for relating the laser radiation parameters to those of the molten pool when a two-vortex flow structure appeared. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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