Publicou 4 edições por ano
ISSN Imprimir: 1065-3090
ISSN On-line: 1940-4336
Indexed in
VISUALIZATION OF THREE-DIMENSIONAL FLOW AROUND RIBS IN A DUCT
RESUMO
The present study investigates the flow structures around one and two ribs mounted perpendicularly to the flow direction on the bottom of a square channel. The flow visualization is performed to shed some light on the complicated flow around such ribs and thus explain and support some of the results obtained during heat transfer investigation. Two techniques of flow visualization are used: dye injection and particle visualization. Experiments are performed for ribs with and without a gap between the side walls and the ribs. The Reynolds number ranges from Re = 500 to 2000. The results show strong three-dimensional flow structure due to the side-wall and gap influence. A heat transfer enchancement in the near-wall regionearlier found during the heat transfer investigationis explained on the basis of the visualization results.