With the downsizing of fluid machinery, a control of low Reynolds number flow is important as a significant factor to affect the energy efficiency. In the present study, an active dimple that vibrates its bottom surface is employed as control actuator for low Reynolds number flow. Induced flow around active dimple and solid dimple which has a fixed bottom surface is investigated. Dimple diameter is 5.0 mm, and Reynolds number based on channel height is 650. The normalized dimple depth by the dimple diameter ranges from 0.02 to 0.3. It is confirmed that both types of dimple have an optimum dimple depth that introduces the maximum outflow at the dimple edge.
|Publication status||Published - 20 Jun 2012|
|Event||50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition - Nashville, TN, United States|
Duration: 9 Jan 2012 → 12 Jan 2012
|Conference||50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition|
|Period||9/01/12 → 12/01/12|