A parametric study is implemented to study the impact of inflow conditions, rheology, and thermo-physical properties on the flow and heat transfer behavior of suddenly expanding, recirculating, and non-recirculating, viscoplastic non-Newtonian flows. The governing mass and fully-elliptic partial differential equations of motion and energy along with the Bingham constitutive equations are numerically solved to provide accurate predictions of the velocity and temperature fields. The expansion ratio was fixed at 2. Inflow conditions, yield stress presence, and transitioning from a non-recirculating to a recirculating viscoplastic flow regime are found to have a strong influence on the overall heat transfer characteristics downstream the expansion plane.
- Heat Transfer Division
The Heat Transfer Behavior of a Suddenly Expanding Viscoplastic Flow Field
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Hammad, KJ. "The Heat Transfer Behavior of a Suddenly Expanding Viscoplastic Flow Field." Proceedings of the ASME 2016 Heat Transfer Summer Conference collocated with the ASME 2016 Fluids Engineering Division Summer Meeting and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels. Volume 2: Heat Transfer in Multiphase Systems; Gas Turbine Heat Transfer; Manufacturing and Materials Processing; Heat Transfer in Electronic Equipment; Heat and Mass Transfer in Biotechnology; Heat Transfer Under Extreme Conditions; Computational Heat Transfer; Heat Transfer Visualization Gallery; General Papers on Heat Transfer; Multiphase Flow and Heat Transfer; Transport Phenomena in Manufacturing and Materials Processing. Washington, DC, USA. July 10–14, 2016. V002T15A008. ASME. https://doi.org/10.1115/HT2016-7365
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