Gas-liquid flow in dividing Tee-junctions with a horizontal inlet and different branch orientations and diameters
Abstract
A data base summarizing experiments on the phase redistribution and pressure differences for a gas-liquid mixture flowing through the horizontal inlet pipe (diameter D1 = 50 mm) of a Tee-junction is presented. Branch to inlet diameter ratios of D3/D1 = 1; 0.52; 0.2; and 0.08 were investigated. The branch orientation was horizontal, vertical upward, or vertical downward. Mostly air-water experiments were performed with pressures between 0.4 and 1 MPa. Experiments with steam-water flows at pressures between 1.5 and 10 MPa were performed for D3/D1 = 1 and a horizontal branch. The results on phase redistribution and pressure drop are compared with other experimental data and model predictions. The data base for Tee-junctions pressure differences is much more limited. Most experiments were performed with a horizontal branch and D3/D1 = 1. A comparison of different models with results for D3/D1 = 0.52 and 1 is presented. No model gives satisfactory results for arbitrary conditions.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- December 1988
- Bibcode:
- 1988STIN...8925427R
- Keywords:
-
- Inlet Flow;
- Joints (Junctions);
- Pipe Flow;
- T Shape;
- Two Phase Flow;
- Data Bases;
- Inlet Pressure;
- Pressure Reduction;
- Fluid Mechanics and Heat Transfer