| 摘要 |
<p>The invention refers to a turbomachine, such as a turbine or a compressor, with a reduced tip leakage flow. It is an object of the invention to provide a constructionally simple and effective solution for reducing the amount of over-tip leakage flow between the stationary and the rotating components in the turbomachine, by applying measures forincreasing the flow losses within the clearance gap between said components, e.g. the shroud of a rotating blade and the opposite flow duct delimiting segment, which will ultimately lead to an increased efficiency of the turbomachine. The invention is based on the idea to provide a number of dimples (10), impressed at least in part into the surfaces (7) of the flow-delimiting contours within the clearance gap (4) between the stationary and rotating components.</p> |
