A new flow map is proposed to emphasize the importance of surface tension in two-phase flow in horizontal miniature and micro tubes. A transition boundary based on a force balance including shear, buoyancy and surface tension forces is also proposed. The flow map is compared against a number of existing experimental data sets totaling 1589 data points. Comparison of the proposed map and model with previous models shows substantial improvement and accuracy in determining surface tension dominated regimes. Furthermore, the proposed flow map shows how each regime transition boundary is affected by surface tension.
A New Two-Phase Flow Map and Transition Boundary Accounting for Surface Tension Effects in Horizontal Miniature and Micro Tubes
Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division July 12, 2000; revision received January 22, 2001. Associate Editor: G. P. Peterson.
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Tabatabai , A., and Faghri, A. (January 22, 2001). "A New Two-Phase Flow Map and Transition Boundary Accounting for Surface Tension Effects in Horizontal Miniature and Micro Tubes ." ASME. J. Heat Transfer. October 2001; 123(5): 958–968. https://doi.org/10.1115/1.1374440
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