@article{yin_hydraulic_2013,
	title = {Hydraulic {Improvement} to {Eliminate} {S}-{Shaped} {Curve} in {Pump} {Turbine}},
	volume = {135},
	issn = {0098-2202},
	doi = {10.1115/1.4023851},
	abstract = {For pump turbines, an S-shaped curve can lead to failures in synchronization. To improve the hydraulic design, the component that is responsible for the formation of the S-shaped curve was identified by a hydraulic loss analysis using previous computational fluid dynamics (CFD) results, which indicates that the formation of the S-shaped curve can be ascribed to the runner. To improve the hydraulic design of the runner, a simple numerical approach for direct problem analysis was proposed, based on the blade-loading distributions of runners with and without an S-shaped curve, and directly analyzed. It was implied from the differences in the blade-loading distributions that, when the meridional passage was broadened, the formation of the S-shaped curve was suppressed. To validate this, two runners with different meridional sections were designed by means of the inverse design method. Through model tests, it was verified that the S-shaped curve was eliminated completely and the performance curve of the modified hydraulic model satisfied the requirements for safe operation in a pumped storage plant.},
	language = {English},
	number = {7},
	journal = {Journal of Fluids Engineering-Transactions of the Asme},
	author = {Yin, Jun-lian and Wang, De-zhong and Wei, Xian-zhu and Wang, Le-qin},
	month = jul,
	year = {2013},
	note = {Place: New York
Publisher: Asme
WOS:000326104000005},
	keywords = {cfd, flow, hydraulic design, optimization, pump turbine, ②已读1x},
	pages = {071105},
}

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