Investigation of the Flow in Pelton Turbinesand the Influence of the Casing

[摘要] At the institute for waterpower and pumps at the University of Technology Vienna we do alot of research work observing the flow in the casing and the buckets of Pelton turbines. Oneinterest of our research is to find criteria to estimate the influence of the splash waterdistribution in the casing on the turbine efficiency. Knowing the splash water distribution itis further possible to develop methods to provide visual documentation of the flow in andaround the buckets from the beginning to the end of interaction.Our measurements have been done on a single jet Pelton turbine with a runner pitchdiameter of 420 mm. Our research shows that the casing has great influence to the operationof a Pelton turbine and so it is very important to include the casing as an important factor inall investigations. Aluminum honeycombs have been successful to bring the splashing waterunder control and to make good visual documentations of the flow.

[学科分类] 力学，机械学