Journal of Flow Visualization and Image Processing

ISSN for PRINT: 1065-3090

For Online Access

Best Paper Award Selection - Editorial Board Site

2005, Volume12

Issue 2

92 pages

DOI: 10.1615/JFlowVisImageProc.v12.i2

Issue price - $154.00

M. Mamun
Department of Mechanical Engineering, Saga University, 1, Honjo, Saga, 840-8502, Japan

Toshiaki Setoguchi
Department of Mechanical Engineering, Saga University, 1, Honjo, Saga 840-8502, Japan

Y. Kinoue
Department of Mechanical Engineering, Saga University, 1, Honjo, Saga, 840-8502, Japan

K. Kaneko
Department of Mechanical Engineering, Saga University, 1, Honjo, Saga, 840-8502, Japan

To visualize the flow field around the blade of the Wells turbine during hysteresis, experimental and numerical investigations were made including deep stall condition of the Wells turbine. The experimental investigation was made using a turbine-equipment with a simulated sinusoidal flow condition. The numerical investigation was made by an unsteady three-dimensional Navier-Stokes numerical simulation. A counterclockwise hysteretic loop is observed in unstalled condition, which can be associated with a streamwise vortical flow appearing near the blade suction surface. Besides, a clockwise hysteretic loop is observed in deep stall condition, the flow structure of which can be considered similar to that of the dynamic stall of an airfoil.

DOI: 10.1615/JFlowVisImageProc.v12.i2.20 Download article, 111-123 pages

Article price - $35.00

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