Experiments on the Vertical Flow of Gas-liquid Mixtures in Glass Pipes
- J.E. Gosline (Standard Oil Company of California)
- Document ID
- Society of Petroleum Engineers
- Transactions of the AIME
- Publication Date
- December 1936
- Document Type
- Journal Paper
- 56 - 70
- 1936. Original copyright American Institute of Mining, Metallurgical, and Petroleum Engineers, Inc. Copyright has expired.
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In any theory of a hydrodynamic nature dealing with the vertical flow ofgas-liquid mixtures in pipes, the two factors that present the greatestdifficulty are the relative motion between the phases and the energy lossresulting from turbulence work. The former has generally been referred to inthe literature as "slippage" and the latter as "friction." Athird factor of importance is the nature of admixture between liquid and gasfor both the relative motion between the phases as well as the turbulence workare functions of the type of mixture.
Although much work of a general nature has been performed on the vertical flowproblem, there have been very few attempts made to study experimentally thefactors involved in the phenomenon individually. Of these, perhaps the mostnotable is the work of Moore and Wilde on slippage.
Some writers on the subject have assumed that over a wide range of operatingconditions the controlling type of mixture is one in which gas bubbles ofuniform size are distributed throughout the liquid, and that the data obtainedfrom experiments on the motion of single bubbles through various liquids may beused in evaluating the slippage. Versluys has further assumed anothercontrolling type of mixture in which the liquid occurs as a dispersed phasewithin the gas and applies data on the fall of drops of water in air tocalculating the relative velocity.
It was for the purpose of studying the applicability of data on single bubblemotion to the slippage factor and to further observe the nature of mixturesthat a research program was conducted at the University of California during1932 and 1933.
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