|Experimental Method for the Measurements and Numerical Investigations of Force Generated on the Rotating Cylinder under Water Flow
|Abramowicz-Gerigk T.1, Burciu Z.1, Jachowski J.1, Kreft2, Majewski D.3, Stachurska B.3, Sulisz W.3, Szmytkiewicz P.3
|2216-1 — 2216-17
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|rotating cylinder, force sensor with built-in amplifier, strain gauge sensor, CFD analysis
|The paper presents the experimental test setup and measurement method of hydrodynamic
force generated on the rotating cylinder (rotor) under uniform flow including the free surface effect.
The experimental test setup was a unique construction installed in the flume tank equipped with
advanced flow generating and measuring systems. The test setup consisted of a bearing mounted
platform with rotor drive and sensors measuring the hydrodynamic force. The low length to diameter
ratio cylinders were selected as models of bow rotor rudders of a shallow draft river barge. The
rotor dynamics was tested for the rotational speeds up to 550 rpm and water current velocity up
to 0.85 m/s. The low aspect ratio of the cylinder and free surface effect had significant impacts on
the phenomena influencing the generated hydrodynamic force. The effects of the rotor length to
diameter ratio, rotational velocity to flow velocity ratio, and the Reynolds number on the lift force
were analyzed. The validation of the computational model against experimental results is presented.
The results show a similar trend of results for the simulation and experiment.
| [reviewed] [scientific]