Measurements of velocity fields in finite cyclinder arrays with and without tip clearance

Barak Avisar, Lev Shemer*, Abraham Kribus

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The velocity field in a finite cylinder array was investigated experimentally in a water towing tank and an acoustic Doppler velocimeter (ADV). The experimental system consisted of a staggered cylinder array having 14 rows to permit streamwise evolution of the flow. The boundaries were manipulated to create several global flow configurations. Three basic configurations were studied: a globally unidirectional flow, a flow with partial lateral blockage at the inlet and outlet planes, and a flow with the top boundary separated from the cylinders creating a tip clearance. The three components of the velocity vector were measured at various points within the model. Time-averaged results are presented for the different flow configurations. The results provide insight into the development of the flow field in cases of a finite array with complex geometry and boundary effects.

Original languageEnglish
Pages (from-to)157-167
Number of pages11
JournalExperimental Thermal and Fluid Science
Issue number3-4
StatePublished - May 2001


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