Experimental and Computational Investigation of Vortex Formation in a Vertical Intake Structure

AYDIN İ., KÖKEN M., Aybar A.

35th World Congress of the International-Association-for-Hydro-Environment-Engineering-and-Research (IAHR), Chengdu, China, 8 - 13 September 2013, pp.1084-1092 identifier

  • Publication Type: Conference Paper / Full Text
  • City: Chengdu
  • Country: China
  • Page Numbers: pp.1084-1092
  • Middle East Technical University Affiliated: Yes


Vortex formation in the head pond of a hydroelectric power plant has been studied experimentally in a scaled hydraulic model. Velocity vector field and the turbulent kinetic energy distributions were measured using an Acoustic Doppler Velocimetry (ADV). Free surface flow in the head pond was also simulated using Flow-3D software. Comparison of measured and computed flow variables were satisfactorily good, promising the use of CFD tool to identify surface vortex and calculate its strength from the numerical solution. Vortex strength was evaluated numerically and then it was shown that it can be used as a key parameter to investigate the performance of a given head pond design.