Probing Reliability of Transport Phenomena Based Heat Transfer and Fluid Flow Analysis in Autogeneous Fusion Welding Process
| Autor: | Swarup Bag, Amitava De |
|---|---|
| Přispěvatelé: | Centre de Mise en Forme des Matériaux (CEMEF), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Department of Mechanical Engineering [Bombay], Indian Institute of Technology Bombay (IIT Bombay) |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Optimization
0209 industrial biotechnology Work (thermodynamics) Materials science Process parameters Thermodynamics Scientific principles Laser 02 engineering and technology Welding Integrated models Pool Convection Transfer Model law.invention [SPI.MAT]Engineering Sciences [physics]/Materials 020901 industrial engineering & automation Thermal conductivity 0203 mechanical engineering Uncertain models law Input parameter Fluid dynamics Fluid queue Effective thermal conductivity Transport phenomena Novel methodology Heat transfer and fluid flow Weld pool Metallurgy Metals and Alloys Mechanics Condensed Matter Physics Fusion welding Algorithm 020303 mechanical engineering & transports Mechanics of Materials Heat transfer Gas tungsten arc Real number Bi-directional Measured results |
| Zdroj: | Metallurgical and Materials Transactions A Metallurgical and Materials Transactions A, Springer Verlag/ASM International, 2010, 41 (9), pp.Pages 2337-2347. ⟨10.1007/s11661-010-0272-9⟩ |
| ISSN: | 2381-3652 1073-5623 |
| Popis: | International audience; The transport phenomena based heat transfer and fluid flow calculations in weld pool require a number of input parameters. Arc efficiency, effective thermal conductivity, and viscosity in weld pool are some of these parameters, values of which are rarely known and difficult to assign a priori based on the scientific principles alone. The present work reports a bi-directional three-dimensional (3-D) heat transfer and fluid flow model, which is integrated with a real number based genetic algorithm. The bi-directional feature of the integrated model allows the identification of the values of a required set of uncertain model input parameters and, next, the design of process parameters to achieve a target weld pool dimension. The computed values are validated with measured results in linear gas-tungsten-arc (GTA) weld samples. Furthermore, a novel methodology to estimate the overall reliability of the computed solutions is also presented. |
| Databáze: | OpenAIRE |
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