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- W1964317406 abstract "The effects of positive and negative surface tension coefficients (∂σsur∕∂T) on both laminar and turbulent weld pool convection are numerically studied for a typical gas tungsten arc welding (GTAW) process. Three-dimensional turbulent weld pool convection in a pool is simulated using a suitably modified high Reynolds number k‐ε model in order to account for the morphology of an evolving solid-liquid interface. Key effects of the sign of surface tension coefficient (∂σsur∕∂T) on the turbulent transport in a GTAW process are highlighted by comparing the turbulent simulation results with the corresponding ones from a laminar model, keeping all other process parameters unaltered. A scaling analysis is also performed in order to obtain order-of-magnitude estimates of weld pool penetration for both positive and negative surface tension coefficients. The scaling analysis predictions are in good agreement with the numerical results, in an order-of-magnitude sense." @default.
- W1964317406 created "2016-06-24" @default.
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- W1964317406 date "2005-03-03" @default.
- W1964317406 modified "2023-09-25" @default.
- W1964317406 title "Influences of Sign of Surface Tension Coefficient on Turbulent Weld Pool Convection in a Gas Tungsten Arc Welding (GTAW) Process: A Comparative Study" @default.
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- W1964317406 doi "https://doi.org/10.1115/1.1928913" @default.
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