Revision as of 15:48, 26 October 2020

Abstract

A research program was carried out at the University of Illinois in which develops a scientific approach to gas-liquid flows that explains their macroscopic behavior in terms of small scale interactions. For simplicity, fully-developed flows in horizontal and near-horizontal pipes. The difficulty in dealing with these flows is that the phases can assume a variety of configurations. The specific goal was to develop a scientific understanding of transitions from one flow regime to another and a quantitative understanding of how the phases distribute for a give regime. These basic understandings are used to predict macroscopic quantities of interest, such as frictional pressure drop, liquid hold-up, entrainment in annular flow and frequency of slugging in slug flows. A number of scientific issues are addressed. Examples are the rate of atomization of a liquid film, the rate of deposition of drops, the behavior of particles in a turbulent field, the generation and growth of interfacial waves. The use of drag-reducing polymers that change macroscopic behavior by changing small scale interactions was explored.

Document type: Report

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The different versions of the original document can be found in:

• http://dx.doi.org/10.2172/837116

• https://digital.library.unt.edu/ark:/67531/metadc787644/m2/1/high_res_d/837116.pdf

• https://www.osti.gov/servlets/purl/837116,https://core.ac.uk/display/71225654,https://digital.library.unt.edu/ark:/67531/metadc787644,https://academic.microsoft.com/#/detail/1633736447