Flows in pipes with sudden enlargement
Abstract
The flow of air in a short circular open duct having an abrupt 2.78-8.38-fold increase in cross-section area is investigated experimentally. The results are presented in graphs and briefly characterized. It is found that the nondimensionalized base pressure depends strongly on the expansion area ratio, the overall pressure ratio, and the length/diameter ratio of the ducts. The applicability of the results to the design of flow lines and supersonic parallel diffusers is indicated.
- Publication:
-
14th Space Technology and Science Symposium
- Pub Date:
- 1984
- Bibcode:
- 1984spte.symp..491R
- Keywords:
-
- Flow Distribution;
- Pipe Flow;
- Pressure Distribution;
- Nozzle Design;
- Reattached Flow;
- Separated Flow;
- Fluid Mechanics and Heat Transfer