Two-phase flow studies
The two-phase flow program is directed at understanding the hydrodynamics of two-phase flows. The two-phase flow regime is characterized by a series of flow patterns that are designated as bubble, slug, churn, and annular flow. Churn flow has received very little scientific attention. This lack of attention cannot be justified because calculations predict that the churn flow pattern will exist over a substantial portion of the two-phase flow zone in producing geothermal wells. The University of Houston is experimentally investigating the dynamics of churn flow and is measuring the holdup over the full range of flow space for which churn flow exists. These experiments are being conducted in an air/water vertical two-phase flow loop. Brown University has constructed and is operating a unique two-phase flow research facility specifically designed to address flow problems of relevance to the geothermal industry. An important feature of the facility is that it is dedicated to two-phase flow of a single substance (including evaporation and condensation) as opposed to the case of a two-component two-phase flow. This facility can be operated with horizontal or vertical test sections of constant diameter or with step changes in diameter to simulate a geothermal well profile.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5595681
- Report Number(s):
- LA-UR-83-3072; CONF-8310177-2; ON: DE84001727
- Resource Relation:
- Conference: 2. annual DOE geothermal progress review meeting, Washington, DC, USA, 11 Oct 1983
- Country of Publication:
- United States
- Language:
- English
Similar Records
Experimental and theoretical studies of isothermal upward gas-liquid flows in vertical tubes
Mass flow rate measurements in gas-liquid flows by means of a venturi or orifice plate coupled to a void fraction sensor