Measured and predicted pressure drops in two-phase air water flows
Bonds, John Meredith
Zucker, Robert D.
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Two-phase, air-water flew is studied in a horizontal pipe. Water injection methods are compared to determine an efficient means of attaining fully developed homogeneous flow. Wall shear forces are measured directly through flexures attached to a "floating" test section. The pressure drops are compared to those predicted by the Lockhart-Martinelli and Chenoweth-Martin correlation schemes . A computer program is presented for data reduction. For the flow rates investigated it is concluded that the Lockhart-Martinelli correlation gives better results than does the Chenoweth-Martin scheme providing one knows the existing flow pattern. A new method is suggested for predicting the transition between the Annular and Mist flow regimes.
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